Mapping Mountains - Significant Name Changes - The Welsh P15s

The Welsh P15s – Significant Name Changes

The Welsh P15s are all Welsh hills that have a minimum of 15m of drop, irrespective of their height.  Accompanying the main P15 list is a sub list entitled; The Welsh Sub-P15s, with the qualification to this sub category being all Welsh hills with 14m or more and below 15m of drop.

The list is authored by Myrddyn Phillips and the posts that have appeared on Mapping Mountains detailing the significant name changes to the main P15 list and the sub list that are below P20 and therefore documented in other lists, appear below presented chronologically in receding order.

Mapping Mountains - Significant Name Changes - The Welsh P15s

Eirianallt Groes (SH 413 787) - 70th significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data. 

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the B5109 road to its south-west and a minor road to its immediate east, and has the hamlet of Llynfaes towards the south-west. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. c 87m) notation with an estimated c 14m of drop, based on an estimated c 87m summit height and an estimated c 73m bwlch height, with both values based on interpolation of 5m contouring that appear on the Ordnance Survey 1:25,000 Explorer map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 10 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Eirianallt Groes in the apportionments, with the details on the Tithe map appearing in the parish of Bodwrog and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Eirianallt Groes and this derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Eirianallt Groes

Previously Listed Name:  Pt. c 87m 

OS 1:50,000 map:  114, 115

Summit Height:  c 87m (interpolation) 

Summit Grid Reference:  SH 41323 78732 (interpolation) 

Bwlch Height:  c 73m (interpolation) 

Bwlch Grid Reference:  SH 41168 78457 (interpolation) 

Drop:  c 14m (interpolation) 

 

Myrddyn Phillips (October 2021)

 

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Pen Felin Wynt (SH 390 687) - 69th significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data and LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Pen Felin Wynt (SH 390 687)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its south-west, the A4080 road to its north and a minor road to its immediate east, and has the small village of Llangadwaladr towards the north-west. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 63m) notation with 19m of drop, based on the 63m summit spot height that appears on the Ordnance Survey 1:50,000 Landranger and 1:25,000 Explorer map and which is adjoined to a triangulation pillar and the 44m bwlch spot height that appears on the Ordnance Survey 1:25,000 Explorer map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 10 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Pen Felin Wynt in the apportionments, with the details on the Tithe map appearing in the parish of Llangadwaladr and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Pen Felin Wynt and this derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Pen Felin Wynt

Previously Listed Name:  Pt. 63m 

OS 1:50,000 map:  114

Summit Height:  63m (triangulation pillar) 

Summit Grid Reference:  SH 39075 68753 (triangulation pillar) 

Bwlch Height:  45.4m (LIDAR) 

Bwlch Grid Reference:  SH 38300 67682 (LIDAR) 

Drop:  18m (triangulation pillar summit and LIDAR bwlch) 

 

Myrddyn Phillips (October 2021)

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Tredda Ffridd Fawr (SH 384 716) - 68th significant name change

Hill Reclassifications post for Tredda Ffridd Fawr

 

There has been a Significant Name Change to a hill that was listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Tredda Ffridd Fawr (SH 384 716)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its south-west and is encircled by minor roads, the A4080 road farther to its south-west and the B4422 road farther to its south-east, and has the village of Aberffraw towards the south-west. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 48m) notation with an estimated c 14m of drop, based on the 48m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and an estimated c 34m bwlch height, based on interpolation of 5m contouring between 30m – 35m. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 101 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Tredda Ffridd Fawr in the apportionments, with the details on the Tithe map appearing in the parish of Trefdraeth and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill was listed by in The Welsh P15s is Tredda Ffridd Fawr and this derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Tredda Ffridd Fawr

Previously Listed Name:  Pt. 48m 

OS 1:50,000 map:  114

Summit Height:  48.5m (LIDAR)                                                           

Summit Grid Reference:  SH 38448 71642 & SH 38445 71640 (LIDAR) 

Bwlch Height:  35.7m (LIDAR) 

Bwlch Grid Reference:  SH 38806 71755 & SH 38805 71754 (LIDAR) 

Drop:  12.8m (LIDAR) 

 

Myrddyn Phillips (October 2021)

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Caer Glaw (SH 375 768) - 67th significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data and LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR bwlch image of Caer Glaw (summit at SH 375 768)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its west, the B5112 road to its north-west, the A5 and A55 roads to its south and a minor road to its immediate east, and has the village of Gwalchmai towards the east south-east. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 63m) notation with 16m of drop, based on the 63m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and the 47m bwlch spot height that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 17 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Caer Glaw in the apportionments, with the details on the Tithe map appearing in the parish of Llanbeulan and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Caer Glaw and this derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Caer Glaw

Previously Listed Name:  Pt. 63m 

OS 1:50,000 map:  114

Summit Height:  63m (spot height) 

Summit Grid Reference:  SH 37576 76896 (spot height) 

Bwlch Height:  46.2m (LIDAR) 

Bwlch Grid Reference:  SH 38355 77966 (LIDAR) 

Drop:  17m (spot height summit and LIDAR bwlch) 

 

My thanks to Aled Williams for advice relating to the listed name of this hill

Myrddyn Phillips (October 2021)

Mapping Mountains - Significant Name Changes - The Welsh P15s

Pen Teiran (SH 336 825) - 66th significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Pen Teiran (SH 336 825)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its west and is encircled by minor roads, with the A5025 road farther to its west and the B5112 road farther to its east, and has the village of Llanfachreth towards the west. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 42m) notation with an estimated c 16m of drop, based on the 42m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and an estimated c 26m bwlch height, based on interpolation of 5m contouring between 25m – 30m that appears on the Ordnance Survey 1:25,000 Explorer map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 4 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Pen Teiran in the apportionments, with the details on the Tithe map appearing in the parish of Llanllibio and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Pen Teiran and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Pen Teiran

Previously Listed Name:  Pt. 42m 

OS 1:50,000 map:  114

Summit Height:  42.1m (LIDAR)                                                           

Summit Grid Reference:  SH 33647 82577 (LIDAR) 

Bwlch Height:  25.4m (LIDAR) 

Bwlch Grid Reference:  SH 33932 82477 (LIDAR) 

Drop:  16.7m (LIDAR) 

 

Myrddyn Phillips (October 2021)

 

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Bodnolwyn Hir (SH 368 840) - 65th significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Bodnolwyn Hir (SH 368 840)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with minor roads to its west, south and east and the B5112 road farther to its south-east, and has the small village of Llanerchymedd towards the east. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 61m) notation with an estimated c 19m of drop, based on the 61m summit spot height that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage map and an estimated c 42m bwlch height, based on interpolation of 5m contouring between 40m – 45m that appears on the Ordnance Survey 1:25,000 Explorer map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 26 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Bodnolwyn Hir in the apportionments, with the details on the Tithe map appearing in the parish of Llantrisaint and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Bodnolwyn Hir and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Bodnolwyn Hir

Previously Listed Name:  Pt. 61m 

OS 1:50,000 map:  114

Summit Height:  60.6m (LIDAR)                                                           

Summit Grid Reference:  SH 36869 84072 (LIDAR) 

Bwlch Height:  44.4m (LIDAR) 

Bwlch Grid Reference:  SH 36599 84489 & SH 36610 84486 (LIDAR) 

Drop:  16.2m (LIDAR) 

 

Myrddyn Phillips (October 2021)

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Bodnolwyn Wen (SH 380 852) - 64th significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Bodnolwyn Wen (SH 380 852)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with minor roads to its north, west, south and east and the B5111 road farther to its east, and has the small village of Llanerchymedd towards the east south-east. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 57m) notation with an estimated c 15m of drop, based on the 57m summit spot height that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage map and an estimated c 42m bwlch height, based on interpolation of 5m contouring between 40m – 45m that appears on the Ordnance Survey 1:25,000 Explorer map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 29 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Bodnolwyn Wen in the apportionments, with the details on the Tithe map appearing in the parish of Llantrisaint and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Bodnolwyn Wen and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Bodnolwyn Wen

Previously Listed Name:  Pt. 57m 

OS 1:50,000 map:  114

Summit Height:  57.1m (LIDAR)                                                           

Summit Grid Reference:  SH 38003 85274 (LIDAR) 

Bwlch Height:  39.8m (LIDAR) 

Bwlch Grid Reference:  SH 37748 85247 (LIDAR) 

Drop:  17.3m (LIDAR) 

 

Myrddyn Phillips (October 2021)

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Carnau (SH 303 764) - 63rd significant name change

Hill Reclassifications post for Carnau

 

There has been a Significant Name Change to a hill that was listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Carnau (SH 303 764)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its west, minor roads to its north, west and east and the A5 and A55 roads farther to its north-east, and has the village of Llanfair-yn-neubwll towards the north. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 22m) notation with an estimated c 14m of drop, based on the 22m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and an estimated c 8m bwlch height, based on interpolation of 5m contouring between 5m – 10m that appears on the Ordnance Survey 1:25,000 Explorer map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 204 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Carnau in the apportionments, with the details on the Tithe map appearing in the parish of Llanfihangel-yn-Nhywyn and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill was listed by in The Welsh P15s is Carnau and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Carnau

Previously Listed Name:  Pt. 22m 

OS 1:50,000 map:  114

Summit Height:  22.1m (LIDAR)                                                           

Summit Grid Reference:  SH 30392 76417 (LIDAR) 

Bwlch Height:  9.8m (LIDAR) 

Bwlch Grid Reference:  SH 30351 76179 & SH 30350 76178 (LIDAR) 

Drop:  12.4m (LIDAR) 

 

Myrddyn Phillips (October 2021)

Mapping Mountains - Significant Name Changes - The Welsh P15s

Plas (SH 350 772) - 62nd significant name change

Hill Reclassifications post for Plas

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Plas (SH 350 772)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its west, the A5 road to its north, a minor road to its west and the A55 road to its south, and has the village of Gwalchmai towards the east south-east. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 39m) notation with 15m of drop, based on the 39m summit spot height and the 24m bwlch spot height that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 16 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Plas in the apportionments, with the details on the Tithe map appearing in the parish of Llechylched and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Plas and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Plas

Previously Listed Name:  Pt. 39m 

OS 1:50,000 map:  114

Summit Height:  37.4m (LIDAR)                                                           

Summit Grid Reference:  SH 35001 77280 (LIDAR) 

Bwlch Height:  22.6m (LIDAR) 

Bwlch Grid Reference:  SH 35405 77441 (LIDAR) 

Drop:  14.8m (LIDAR) 

 

Myrddyn Phillips (September 2021)

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Cleifiog Isaf (SH 306 793) - 61st significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Cleifiog Isaf (SH 306 793)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast and the A5025 road to its north-west, the A55 and A5 roads to its south, a minor road to its east and the B5109 road to its north-east, and has the village of Y Fali (Valley) towards the west. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 22m) notation with 19m of drop, based on the 22m summit spot height and the 3m bwlch spot height that appear on the Ordnance Survey 1:25,000 Explorer map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 21 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Cleifiog Isaf in the apportionments, with the details on the Tithe map appearing in the parish of Llanynghenedl and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Cleifiog Isaf and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Cleifiog Isaf

Previously Listed Name:  Pt. 22m 

OS 1:50,000 map:  114

Summit Height:  22.6m (LIDAR) 

Summit Grid Reference:  SH 30601 79335 (LIDAR) 

Bwlch Height:  3.1m (LIDAR) 

Bwlch Grid Reference:  SH 30858 79952 (LIDAR) 

Drop:  19.5m (LIDAR) 

 

Myrddyn Phillips (September 2021)

Mapping Mountains - Significant Name Changes - The Welsh P15s

Tŷ Croes (SH 321 807) - 60th significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Tŷ Croes (SH 321 807)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its west, the B5109 road to its north, the A5025 road to its west, the A55 and A5 roads to its south and a minor road to its south-east, and has the village of Bobedern towards the east south-east. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 34m) notation with an estimated c 16m of drop, based on the 34m summit spot height that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map and an estimated c 18m bwlch height based on interpolation of 5m contouring between 15m – 20m. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 36 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Tŷ Croes in the apportionments, with the details on the Tithe map appearing in the parish of Llanynghenedl and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Tŷ Croes and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Tŷ Croes

Previously Listed Name:  Pt. 34m 

OS 1:50,000 map:  114

Summit Height:  34.4m (LIDAR) 

Summit Grid Reference:  SH 32170 80764 (LIDAR) 

Bwlch Height:  17.5m (LIDAR) 

Bwlch Grid Reference:  SH 32555 81107 (LIDAR) 

Drop:  16.9m (LIDAR) 

 

Myrddyn Phillips (September 2021)

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Gwredog (SH 417 898) - 59th significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data and LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR bwlch image for Gwredog (summit at SH 417 898)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its north and is encircled by minor roads, with the B5111 road farther to its east, and has the small village of Rhos-goch towards the south-west. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 91m) notation with an estimated c 17m of drop, based on the 91m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and an estimated c 74m bwlch height, based on interpolation of 5m contouring between 70m – 75m. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 135 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Gwredog in the apportionments, with the details on the Tithe map appearing in the parish of Amlwch and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Gwredog and this derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Gwredog

Previously Listed Name:  Pt. 91m 

OS 1:50,000 map:  114

Summit Height:  91m (spot height) 

Summit Grid Reference:  SH 41772 89835 (spot height) 

Bwlch Height:  73.4m (LIDAR) 

Bwlch Grid Reference:  SH 42287 90178 (LIDAR) 

Drop:  c 18m (spot height summit and LIDAR bwlch) 

 

Myrddyn Phillips (September 2021)

Mapping Mountains - Significant Name Changes - The Welsh P15s

Hafod Onnen (SH 425 908) - 58th significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Hafod Onnen (SH 425 908)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its north, minor roads to its north and south-west and the B5111 road to its south-east, and has the town of Amlwch towards the north-east. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 73m) notation with an estimated c 14m of drop, based on the 73m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and an estimated c 59m bwlch height based on interpolation of contouring between 55m – 60m. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 141 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Hafod Onnen in the apportionments, with the details on the Tithe map appearing in the parish of Amlwch and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Hafod Onnen and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Hafod Onnen

Previously Listed Name:  Pt. 73m 

OS 1:50,000 map:  114

Summit Height:  73.9m (LIDAR) 

Summit Grid Reference:  SH 42507 90850 (LIDAR) 

Bwlch Height:  59.4m (LIDAR) 

Bwlch Grid Reference:  SH 42499 90616 (LIDAR) 

Drop:  14.5m (LIDAR) 

 

Myrddyn Phillips (September 2021)

 

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Maes Llwyn (SH 435 920) - 57th significant name change

Significant Height Revisions post for Maes Llwyn  

Summit Relocations post for Maes Llwyn

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Maes Llwyn (SH 435 920)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its north and is encircled by minor roads with the B5111 road and the A5025 road farther to its north and also east, and has the town of Amlwch towards the north-east. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 77m) notation with 25m of drop, based on the 77m summit spot height positioned on or near to a covered reservoir, that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map and the 52m bwlch spot height that appears on the Ordnance Survey 1:50,000 Landranger map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 216 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Maes Llwyn in the apportionments, with the details on the Tithe map appearing in the parish of Amlwch and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Maes Llwyn and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Maes Llwyn

Previously Listed Name:  Pt. 77m 

OS 1:50,000 map:  114

Summit Height:  74.0m (LIDAR) 

Summit Grid Reference:  SH 43593 92022 (LIDAR) 

Bwlch Height:  54.9m (LIDAR) 

Bwlch Grid Reference:  SH 43658 91747 (LIDAR) 

Drop:  19.1m (LIDAR) 

 

Myrddyn Phillips (September 2021)

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Pen yr Allt (SH 429 917) - 56th significant name change

Hill Reclassifications post for Pen yr Allt

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Pen yr Allt (SO 429 917)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its north, and is encircled by minor roads with the A5025 road farther to its north and the B5111 road farther to its east, and has the town of Amlwch towards the north-east. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 69m) notation with 15m of drop, based on the 69m summit spot height that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map and the 54m bwlch spot height that appears on the Ordnance Survey 1:25,000 Explorer map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 191 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Pen yr Allt in the apportionments, with the details on the Tithe map appearing in the parish of Amlwch and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Pen yr Allt and this derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Pen yr Allt

Previously Listed Name:  Pt. 69m 

OS 1:50,000 map:  114

Summit Height:  69.4m (LIDAR)                                                           

Summit Grid Reference:  SH 42925 91717 (LIDAR) 

Bwlch Height:  55.1m (LIDAR) 

Bwlch Grid Reference:  SH 43244 91030 (LIDAR) 

Drop:  14.3m (LIDAR) 

 

Myrddyn Phillips (September 2021)

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Clegyrog Uchaf (SH 388 891) - 55th significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data. 

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its north and is encircled by minor roads, with the A5025 road farther to its north and the B5111 road farther to its east, and has the village of Carreg-lefn towards the west. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 97m) notation with an estimated c 14m of drop, based on the 97m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and an estimated c 83m bwlch height, based on interpolation of 5m contouring between 80m – 85m. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 117 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Clegyrog Uchaf in the apportionments, with the details on the Tithe map appearing in the parish of Llanbadrig and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Clegyrog Uchaf and this derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Clegyrog Uchaf

Previously Listed Name:  Pt. 97m 

OS 1:50,000 map:  114

Summit Height:  97m (spot height) 

Summit Grid Reference:  SH 38878 89188 (spot height) 

Bwlch Height:  c 83m (interpolation) 

Bwlch Grid Reference:  SH 38810 89397 (interpolation) 

Drop:  c 14m (spot height summit and interpolated bwlch) 

 

Myrddyn Phillips (September 2021)

 

 

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Clegyrog Uchaf (SH 383 888) - 54th significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data. 

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its north and is encircled by minor roads, with the A5025 road farther to its north and the B5111 road farther to its east, and has the village of Carreg-lefn towards the north. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 93m) notation with an estimated c 15m of drop, based on the 93m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and an estimated c 78m bwlch height, based on interpolation of 5m contouring between 75m – 80m. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 117 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Clegyrog Uchaf in the apportionments, with the details on the Tithe map appearing in the parish of Llanbadrig and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Clegyrog Uchaf and this derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Clegyrog Uchaf

Previously Listed Name:  Pt. 93m 

OS 1:50,000 map:  114

Summit Height:  93m (spot height) 

Summit Grid Reference:  SH 38385 88818 (spot height) 

Bwlch Height:  c 78m (interpolation) 

Bwlch Grid Reference:  SH 38736 89019 (interpolation) 

Drop:  c 15m (spot height summit and interpolated bwlch) 

 

Myrddyn Phillips (September 2021)

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Bryn Du (SH 398 896) - 53rd significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data. 

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its north and is encircled by minor roads, with the A5025 road farther to its north and the B5111 road farther to its east, and has the village of Carreg-lefn towards the west south-west. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 86m) notation with an estimated c 14m of drop, based on the 86m summit spot height that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map and an estimated c 72m bwlch height, based on interpolation of 5m contouring between 70m – 75m that appears on the Ordnance Survey 1:25,000 Explorer map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 111a on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Bryn Du in the apportionments, with the details on the Tithe map appearing in the parish of Llanbadrig and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Bryn Du and this derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Bryn Du

Previously Listed Name:  Pt. 86m 

OS 1:50,000 map:  114

Summit Height:  86m (spot height) 

Summit Grid Reference:  SH 39843 89644 (spot height) 

Bwlch Height:  c 72m (interpolation) 

Bwlch Grid Reference:  SH 39722 88861 (interpolation) 

Drop:  c 14m (spot height summit and interpolated bwlch) 

 

Myrddyn Phillips (September 2021)

 

 

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Tyddyn Creigiau (SH 367 888) - 52nd significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data. 

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its north and west, and is encircled by minor roads with the A5025 road farther to its north-west, and has the village of Llanfechell towards the north. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 89m) notation with an estimated c 17m of drop, based on the 89m summit spot height that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map and an estimated c 72m bwlch height, based on interpolation of 5m contouring between 70m – 75m that appears on the Ordnance Survey 1:25,000 Explorer map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 136 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Tyddyn Creigiau in the apportionments, with the details on the Tithe map appearing in the parish of Llanbadrig and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Tyddyn Creigiau and this derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Tyddyn Creigiau

Previously Listed Name:  Pt. 89m 

OS 1:50,000 map:  114

Summit Height:  89m (spot height) 

Summit Grid Reference:  SH 36779 88865 (spot height) 

Bwlch Height:  c 72m (interpolation) 

Bwlch Grid Reference:  SH 36042 88822 (interpolation) 

Drop:  c 17m (spot height summit and interpolated bwlch) 

 

Myrddyn Phillips (September 2021)

Mapping Mountains - Significant Name Changes - The Welsh P15s

Pen Ucheldref (SH 349 882) - 51st significant name change

Significant Height Revisions post for Pen Ucheldref

Summit Relocations post for Pen Ucheldref

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data and LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Pen Ucheldref (SH 349 882)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with two minor roads beside its summit and the A5025 road to its north-west, and has the village of Llanrhuddlad also towards the north-west. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. c 90m) notation with an estimated c 23m of drop, based on an estimated c 90m summit height and an estimated c 67m bwlch height, with both heights based on interpolation of 5m contouring that appears on the Ordnance Survey 1:25,000 Explorer map, with the 85m upper summit contour mistaken for 90m. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 6 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Pen Ucheldref in the apportionments, with the details on the Tithe map appearing in the parish of Llanfflewin and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Pen Ucheldref and this derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Pen Ucheldref

Previously Listed Name:  Pt. c 90m 

OS 1:50,000 map:  114

Summit Height:  85.4m (LIDAR) 

Summit Grid Reference:  SH 34917 88259 (LIDAR) 

Bwlch Height:  c 67m (interpolation) 

Bwlch Grid Reference:  SH 35183 88544 (interpolation) 

Drop:  c 18m (LIDAR summit and interpolated bwlch) 

 

Myrddyn Phillips (August 2021)

 

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Berth (SH 324 875) - 50th significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data. 

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast and the A5025 road to its west and minor roads to its south and east, and has the village of Llanfaethlu towards the south-west. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 73m) notation with an estimated c 16m of drop, based on the 73m summit spot height that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map and an estimated c 57m bwlch height based on interpolation of 5m contouring between 55m – 60m that appears on the Ordnance Survey 1:25,000 Explorer map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 344 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Berth in the apportionments, with the details on the Tithe map appearing in the parish of Llanfaethlu and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Berth and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Berth

Previously Listed Name:  Pt. 73m 

OS 1:50,000 map:  114

Summit Height:  73m (spot height)                                                           

Summit Grid Reference:  SH 32407 87535 (spot height) 

Bwlch Height:  c 57m (interpolation) 

Bwlch Grid Reference:  SH 32675 87683 (interpolation) 

Drop:  c 16m (spot height summit and interpolated bwlch) 

 

Myrddyn Phillips (August 2021)

 

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Cae Summer House (SH 307 880) - 49th significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data. 

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its west, minor roads to its north, west, south and east and has the A5025 road to its south-east, and has the village of Llanfaethlu towards the south south-east. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 72m) notation with an estimated c 19m of drop, based on the 72m summit spot height that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map and an estimated c 53m bwlch height based on interpolation of 5m contouring between 50m – 55m that appears on the Ordnance Survey 1:25,000 Explorer map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 467 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Cae Summer House in the apportionments, with the details on the Tithe map appearing in the parish of Llanfaethlu and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Cae Summer House and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Cae Summer House

Previously Listed Name:  Pt. 72m 

OS 1:50,000 map:  114

Summit Height:  72m (spot height)                                                           

Summit Grid Reference:  SH 30776 88017 (spot height) 

Bwlch Height:  c 53m (interpolation) 

Bwlch Grid Reference:  SH 31412 88572 (interpolation) 

Drop:  c 19m (spot height summit and interpolated bwlch) 

 

Myrddyn Phillips (August 2021)

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Meiriogen (SH 354 857) - 48th significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data. 

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it has the coast to its west, and is encircled by minor roads with the A5025 road farther to its west, and has the village of Llanddeusant towards the south-west. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 66m) notation with 19m of drop, based on the 66m summit spot height that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map and the 47m bwlch spot height that appears on the Ordnance Survey 1:25,000 Explorer map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map 

The enclosed land where the summit of this hill is situated is given the number 16 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Meiriogen in the apportionments, with the details on the Tithe map appearing in the parish of Llanddeusant and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Meiriogen and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Meiriogen

Previously Listed Name:  Pt. 66m 

OS 1:50,000 map:  114

Summit Height:  66m (spot height)                                                           

Summit Grid Reference:  SH 35461 85799 (spot height) 

Bwlch Height:  47m (spot height) 

Bwlch Grid Reference:  SH 35708 86002 (spot height) 

Drop:  19m (spot height summit and bwlch) 

 

Myrddyn Phillips (August 2021)

Mapping Mountains - Significant Name Changes - The Welsh P15s

Nanner (SH 333 916) - 47th significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data. 

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is encircled by minor roads, with the coast to its north and the A5025 road farther to its south-east, and has the village of Cemaes towards the east north-east. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. c 45m) notation with an estimated c 17m of drop, based on an estimated c 45m summit height from interpolation of 5m contouring that appears on the Ordnance Survey 1:25,000 Explorer map, and the 28m bwlch spot height that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 13 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Nanner in the apportionments, with the details on the Tithe map appearing in the parish of Llanrhwydrys and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Nanner and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Nanner

Previously Listed Name:  Pt. c 45m 

OS 1:50,000 map:  114

Summit Height:  45m (spot height)                                                           

Summit Grid Reference:  SH 33335 91687 (spot height) 

Bwlch Height:  28m (spot height) 

Bwlch Grid Reference:  SH 33176 91439 (spot height) 

Drop:  17m (spot height summit and bwlch) 

 

Myrddyn Phillips (August 2021)

 

 

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Bwlch (SH 350 914) - 46th significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data and LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Bwlch (SH 350 914)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its north, the A5025 road to its immediate north-west and minor roads to its north-east, south and east, and has the village of Cemaes towards the north-east. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 44m) notation with an estimated c 16m of drop, based on the 44m summit spot height that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map and an estimated c 28m bwlch height based on interpolation of 5m contouring between 25m – 30m that appear on the Ordnance Survey 1:25,000 Explorer map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 38 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Bwlch in the apportionments, with the details on the Tithe map appearing in the parish of Llanfechell and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Bwlch and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Bwlch

Previously Listed Name:  Pt. 44m 

OS 1:50,000 map:  114

Summit Height:  45.5m (LIDAR)                                                           

Summit Grid Reference:  SH 35072 91457 (LIDAR) 

Bwlch Height:  c 28m (interpolation) 

Bwlch Grid Reference:  SH 35481 91095 (interpolation) 

Drop:  c 18m (LIDAR summit and interpolated bwlch) 

 

Myrddyn Phillips (August 2021)

 

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Pen y Groes or Glanrafon (SH 343 901) - 45th significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data and LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Pen y Groes or Glanrafon (SH 343 901)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its north-west, the A5025 road to its west, and minor roads to its north, south and south-east, and has the village of Llanfechell towards the east north-east. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 62m) notation with 16m of drop, based on the 62m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and the 46m bwlch spot height that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 18 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Pen y Groes or Glanrafon in the apportionments, with the details on the Tithe map appearing in the parish of Llanrhwydrys and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Pen y Groes or Glanrafon and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Pen y Groes or Glanrafon

Previously Listed Name:  Pt. 62m 

OS 1:50,000 map:  114

Summit Height:  61.3m (LIDAR)                                                           

Summit Grid Reference:  SH 34328 90179 (LIDAR) 

Bwlch Height:  46m (spot height) 

Bwlch Grid Reference:  SH 34632 90351 (interpolation from available LIDAR) 

Drop:  15m (LIDAR summit and spot height bwlch) 

 

Myrddyn Phillips (August 2021) 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Cromlech (SH 365 924) - 44th significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill confirmed by LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Cromlech (SH 365 924)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast and the A5025 road to its north, and minor roads to its south and east, and has the village of Cemaes towards the north north-east. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 49m) notation with an estimated c 21m of drop, based on the 49m summit spot height and an estimated c 28m bwlch height based on interpolation of 5m contouring between 25m – 30m that appears on the Ordnance Survey 1:25,000 Explorer map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 53 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Cromlech in the apportionments, with the details on the Tithe map appearing in the parish of Llanfechell and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Cromlech and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Cromlech

Previously Listed Name:  Pt. 49m 

OS 1:50,000 map:  114

Summit Height:  47.95m (LIDAR)                                                           

Summit Grid Reference:  SH 36568 92457 (LIDAR) 

Bwlch Height:  28.1m (LIDAR) 

Bwlch Grid Reference:  SH 36561 91044 (LIDAR) 

Drop:  19.8m (LIDAR) 

 

Myrddyn Phillips (August 2021)

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Bod Orsedd (SH 364 916) - 43rd significant name change

Hill Reclassifications post for Bod Orsedd

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill confirmed by LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Bod Orsedd (SH 364 916)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its north, the A5025 road to its west and minor roads to its south and east, and has the village of Cemaes towards the north north-east. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 44m) notation with an estimated c 16m of drop, based on the 44m summit spot height that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map and an estimated c 28m bwlch height based on interpolation of 5m contouring between 25m – 30m that appears on the Ordnance Survey 1:25,000 Explorer map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 86 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Bod Orsedd in the apportionments, with the details on the Tithe map appearing in the parish of Llanfechell and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Bod Orsedd and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Bod Orsedd

Previously Listed Name:  Pt. 44m 

OS 1:50,000 map:  114

Summit Height:  43.3m (LIDAR)                                                           

Summit Grid Reference:  SH 36400 91688 (LIDAR) 

Bwlch Height:  28.8m (LIDAR) 

Bwlch Grid Reference:  SH 36530 92019 & SH 36531 92017 (LIDAR) 

Drop:  14.5m (LIDAR) 

 

Myrddyn Phillips (August 2021)

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Carrog (SH 373 926) - 42nd significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill confirmed by LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Carrog (SH 373 926)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast and the A5025 road to its north, minor roads to its west, south and east, and has the village of Cemaes towards the north-west. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 43m) notation with 17m of drop, based on the 43m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and the 26m bwlch spot height that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 84 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Carrog in the apportionments, with the details on the Tithe map appearing in the parish of Llanbadrig and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Carrog and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Carrog

Previously Listed Name:  Pt. 43m 

OS 1:50,000 map:  114

Summit Height:  42.7m (LIDAR)                                                           

Summit Grid Reference:  SH 37327 92635 (LIDAR) 

Bwlch Height:  25.8m (LIDAR) 

Bwlch Grid Reference:  SH 37058 91986 (LIDAR) 

Drop:  16.9m (LIDAR) 

 

Myrddyn Phillips (August 2021)

 

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Tregynrig Fawr (SH 402 924) - 41st significant name change

Significant Height Revisions post for Tregynrig Fawr

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill confirmed by LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Tregynrig Fawr (SH 402 924)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast and the A5025 road to its north, minor roads to its west, south and east, and has the town of Amlwch towards the east. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. c 64m) notation with an estimated c 16m of drop, based on an estimated c 64m summit height and an estimated c 48m bwlch height, with both heights based on interpolation of 5m contouring that appears on the Ordnance Survey 1:25,000 Explorer map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 40 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Tregynrig Fawr in the apportionments, with the details on the Tithe map appearing in the parish of Llanbadrig and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Tregynrig Fawr and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Tregynrig Fawr

Previously Listed Name:  Pt. c 64m 

OS 1:50,000 map:  114

Summit Height:  66.5m (LIDAR)                                                           

Summit Grid Reference:  SH 40239 92455 & SH 40241 92457 (LIDAR) 

Bwlch Height:  47.1m (LIDAR) 

Bwlch Grid Reference:  SH 40184 93235 (LIDAR) 

Drop:  19.3m (LIDAR) 

 

Myrddyn Phillips (August 2021)

 

 

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Nant y Frân (SH 389 923) - 40th significant name change

Hill Reclassifications post for Nant y Frân

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from LIDAR analysis conducted by Myrddyn Phillips. 

LIDAR image of Nant y Frân (SH 389 923)

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast and the A5025 road to its north, minor roads to its west, south and east, and has the village of Cemaes towards the west north-west. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 49m) notation with 15m of drop, based on the 49m summit spot height that appears on the Ordnance Survey 1:25,000 Explorer map and the 34m bwlch spot height that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 43 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Nant y Frân in the apportionments, with the details on the Tithe map appearing in the parish of Llanbadrig and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Nant y Frân and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Nant y Frân

Previously Listed Name:  Pt. 49m 

OS 1:50,000 map:  114

Summit Height:  49.4m (LIDAR)                                                           

Summit Grid Reference:  SH 38928 92356 (LIDAR) 

Bwlch Height:  34.7m (LIDAR) 

Bwlch Grid Reference:  SH 38859 92572 (LIDAR) 

Drop:  14.7m (LIDAR) 

 

Myrddyn Phillips (August 2021)

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Neuadd Fawr (SH 388 933) - 39th significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data. 

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast and the A5025 road to its north, and minor roads to its west, south and south-east, and has the village of Cemaes towards the west. 

Extract from the Ordnance Survey 1:25,000 Explorer map

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 64m) notation with an estimated c 16m of drop, based on the 64m summit spot height that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map and which now appears on the interactive mapping hosted on the Magic Maps website, and an estimated c 48m bwlch height based on interpolation of 5m contouring between 45m – 50m that appear on the Ordnance Survey 1:25,000 Explorer map. 

Extract from the Magic Maps website

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 32 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Neuadd Fawr in the apportionments, with the details on the Tithe map appearing in the parish of Llanbadrig and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Neuadd Fawr and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Neuadd Fawr

Previously Listed Name:  Pt. 64m 

OS 1:50,000 map:  114

Summit Height:  64m (spot height)                                                           

Summit Grid Reference:  SH 38856 93336 (spot height) 

Bwlch Height:  c 48m (interpolation) 

Bwlch Grid Reference:  SH 38968 93549 (interpolation) 

Drop:  c 16m (spot height summit and interpolated bwlch) 

 

Myrddyn Phillips (July 2021)

Mapping Mountains - Significant Name Changes - The Welsh P15s

Betws (SH 392 937) - 38th significant name change

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data. 

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its north, the A5025 road to its south, and has the village of Cemaes towards the west. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. c 71m) notation with an estimated c 17m of drop, based on an estimated c 71m summit height, based on interpolation of 5m contouring that appear on the Ordnance Survey 1:25,000 Explorer map and the 54m bwlch spot height that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

The details for this hill have subsequently been re-assessed against the mapping on the WalkLakes website which hosts an interactive map originated from the Ordnance Survey Open Data programme.  This map has many spot heights not on other publicly available Ordnance Survey maps and for this hill a 72m spot height is given on the area of its summit.  During this re-assessment the listed bwlch height was also amended favouring the 53m spot height that appears on the Ordnance Survey 1:25,000 Explorer map. 

Extract from the WalkLakes website

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 36 on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Betws in the apportionments, with the details on the Tithe map appearing in the parish of Llanbadrig and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Betws and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Betws

Previously Listed Name:  Pt. c 71m 

OS 1:50,000 map:  114

Summit Height:  72m (spot height)                                                           

Summit Grid Reference:  SH 39299 93790 (spot height) 

Bwlch Height:  53m (spot height) 

Bwlch Grid Reference:  SH 39758 93691 (spot height) 

Drop:  19m (spot height summit and bwlch) 

 

Myrddyn Phillips (July 2021)

Mapping Mountains - Significant Name Changes - The Welsh P15s

Llanlleiana Park (SH 386 946) - 37th significant name change

Hill Reclassifications post for Llanlleiana Park

Significant Height Revisions post for Llanlleiana Park

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data. 

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its north, a minor road and the A5025 road farther to its south, and has the village of Cemaes towards the south-west. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. 44m) notation with an estimated c 16m of drop, based on the 44m summit spot height that appeared on the Ordnance Survey Vector Map Local hosted on the Geograph website and which was entitled the Interactive Coverage Map and an estimated c 28m bwlch height based on interpolation of 5m contouring between 25m – 30m that appear on the Ordnance Survey 1:25,000 Explorer map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

The details for this hill have subsequently been re-assessed against the current Ordnance Survey interactive map hosted on the Geograph website which gives a 46m summit spot height, and current 5m contouring at the bwlch between 30m – 35m and which is estimated as c 32m, with these values giving this hill an estimated c 14m of drop. 

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 248a on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Llanlleiana Park in the apportionments, with the details on the Tithe map appearing in the parish of Amlwch and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Llanlleiana Park and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Llanlleiana Park

Previously Listed Name:  Pt. 44m 

OS 1:50,000 map:  114

Summit Height:  46m (spot height)                                                           

Summit Grid Reference:  SH 38614 94695 (spot height) 

Bwlch Height:  c 32m (interpolation) 

Bwlch Grid Reference:  SH 38606 94628 (interpolation) 

Drop:  c 14m (spot height summit and interpolated bwlch) 

 

Myrddyn Phillips (July 2021)

 

Mapping Mountains - Significant Name Changes - The Welsh P15s

Llanlleiana Park (SH 388 946) - 36th significant name change

Significant Height Revisions post for Llanlleiana Park

 

There has been a Significant Name Change to a hill that is listed in The Welsh P15s, with the summit height, bwlch height and their locations, the drop and status of the hill derived from detail on contemporary maps produced from Ordnance Survey data. 

The criteria for the list that this name change applies to are:

The Welsh P15s – Welsh hills with 15m minimum drop, irrespective of their height, with an accompanying sub list entitled the Welsh Sub-P15s, with the criteria for this sub category being all Welsh hills with 14m or more and below 15m of drop.  The list is authored by Myrddyn Phillips, with the Introduction to the list appearing on Mapping Mountains on the 10^th May 2019. 

The Welsh P15s by Myrddyn Phillips

The hill is adjoined to the Ynys Môn group of hills, which are situated in the north-western part of North Wales (Region A, Sub-Region A1), and it is positioned with the coast to its north, a minor road to its south and the A5025 road farther to its south, and has the village of Cemaes towards the south-west. 

When the listing that became known as The Welsh P15s was being compiled, this hill was listed under the point (Pt. c 52m) notation with an estimated c 15m of drop based on an estimated c 52m summit height and an estimated c 37m bwlch height, with both heights based on interpolation of 5m contouring that appears on the Ordnance 1:25,000 Explorer map. 

Extract from the Ordnance Survey 1:25,000 Explorer map

As the summit of this hill comprises bounded land the details for it were examined on the Tithe map.  The term Tithe map is generally given to a map of a Welsh or English parish or township and which was prepared after the 1836 Tithe Commutation Act.  This act allowed tithes to be paid in cash rather than goods.  The Tithe maps gave names of owners and occupiers of land in each parish and importantly for place-name research they also included the name of enclosed land.  This enclosed land is usually based on a field system, however not every field is given a name, but many are and especially so in Wales. 

Extract from the Tithe map

The enclosed land where the summit of this hill is situated is given the number 248a on the Tithe map, this can be cross referenced against the apportionments; it is these apportionments that give the name of the owner or occupier of the land as well as the name of the land.  The land where the summit of this hill is situated is named as Llanlleiana Park in the apportionments, with the details on the Tithe map appearing in the parish of Amlwch and in the county named as Anglesey. 

Extract from the apportionments

Therefore, the name this hill is now listed by in The Welsh P15s is Llanlleiana Park and this was derived from the Tithe map. 

 

The full details for the hill are: 

Group:  Ynys Môn 

Name:  Llanlleiana Park

Previously Listed Name:  Pt. c 52m 

OS 1:50,000 map:  114

Summit Height:  55m (spot height) 

Summit Grid Reference:  SH 38859 94607 (spot height) 

Bwlch Height:  c 38m (interpolation) 

Bwlch Grid Reference:  SH 38902 94509 (interpolation) 

Drop:  c 17m (spot height summit and interpolated bwlch) 

 

Myrddyn Phillips (July 2021)