Monday, 27 March 2023

New Welsh LIDAR - Welsh Highlands - Uchafion Cymru

 

The Welsh Highlands – Uchafion Cymru:

Update on Recent Status Changes 

The release of new Welsh LIDAR has generated a number of status changes in the listing of the Welsh Highlands – Uchafion Cymru.  Those subsequently confirmed by a Trimble GeoXH 6000 survey also appear below and are listed separately: 

 

The Welsh Highlands Tops (≥P15)

Group

Name

Summit (m)

Summit GR

Bwlch (m)

Bwlch GR

Drop (m)

Change

Moel Hebog

Pt. 576.0m

576.0

SH 55928 47521

560.4

SH 55885 47595

15.6

Addition

Carnedd y Filiast

Llechwedd Du

511.4

SH 89360 44629

497.1

SH 89096 44273

14.3

Deletion

Craig Berwyn

Pt. 585.6m

585.6

SJ 13031 32635

571.5

SJ 12920 32539

14.2

Deletion

Y Garn

Cefn Blaen Merin

552.9

SN 81271 81064

538.1

SN 81424 81034

14.8

Deletion


The Welsh Highlands Sub-Tops (P10 to <P15)

Group

Name

Summit (m)

Summit GR

Bwlch (m)

Bwlch GR

Drop (m)

Change

Carnedd Llewelyn

Carnedd Fach

965.1

SH 65808 62620

956.2

SH 65840 62664

8.9

Deletion

Carnedd Llewelyn

Craig yr Ysfa

864.3

SH 69232 63638

855.0

SH 69193 63707

9.2

Deletion

Carnedd Llewelyn

Pen y Castell

621.1

SH 72434 68874

611.0

SH 72374 68895

10.1

Addition

Glyder Fawr

Pt. 872.5m

872.5

SH 65866 57758

863.9

SH 65874 57788

8.6

Deletion

Glyder Fawr

Elidir Fach

794.5

SH 60378 61339

784.7

SH 60556 61279

9.8

Deletion

Glyder Fawr

Yr Esgair

708.3

SH 62988 61307

702.0

SH 62967 61278

6.3

Deletion

Yr Wyddfa

Pt. 906.2m

906.2

SH 61982 55146

896.4

SH 61885 55154

9.8

Deletion

Yr Wyddfa

Pt. 563.3m

563.3

SH 63821 55162

553.2

SH 63750 55176

10.0

Addition

Moel Hebog

Moel yr Ogof

576.0

SH 55928 47521

560.4

SH 55885 47595

15.6

Deletion

Moel Siabod

Cefn y Cerrig

502.2

SH 67480 54510

491.3

SH 67511 54417

10.9

Addition

Moelwyn Mawr

Pt. 592.5m

592.5

SH 64805 47425

582.2

SH 64974 47586

10.3

Addition

Moelwyn Mawr

Pt. 571.3m

571.3

SH 66153 49880

560.9

SH 66223 49897

10.4

Addition

Moelwyn Mawr

Pt. 531.3m

531.3

SH 65884 46911

520.6

SH 65971 46821

10.6

Addition

Arenig Fawr

Pen Tyrau

697.8

SH 83744 38244

688.1

SH 83602 38147

9.7

Deletion

Arenig Fawr

Pt. 590.9m

590.9

SH 77617 24963

581.5

SH 77711 25065

9.5

Deletion

Arenig Fawr

Y Ddau Faen Llwyd

537.3

SH 80456 31074

527.6

SH 80534 31223

9.7

Deletion

Arenig Fawr

Graig Fach

511.3

SH 79263 24920

501.4

SH 79277 24975

9.9

Deletion

Arenig Fawr

Pt. 510.8m

510.8

SH 77218 24611

500.0

SH 77276 24637

10.8

Addition

Arenig Fawr

Pt. 510.0m

510.0

SH 81962 31463

499.1

SH 82130 31691

10.9

Addition

Arenig Fawr

Bryn Ceffyl

506.7

SH 78639 37135

496.3

SH 78628 37059

10.5

Addition

Carnedd y Filiast

Foel Fach

544.5

SH 94433 42381

534.4

SH 94485 42417

10.1

Addition

Carnedd y Filiast

Llechwedd Du

511.4

SH 89360 44629

497.1

SH 89096 44273

14.3

Addition

Craig Berwyn

Pt. 585.6m

585.6

SJ 13031 32635

571.5

SJ 12920 32539

14.2

Addition

Craig Berwyn

Pt. 568.7m

568.7

SJ 13353 39284

558.9

SJ 12789 39284

9.8

Deletion

Craig Berwyn

Cerrig Duon

549.3

SJ 12833 38497

540.0

SJ 12785 38809

9.3

Deletion

Esgeiriau Gwynion

Hen Gerrig

518.1

SH 95070 18770

507.9

SH 95012 18806

10.2

Addition

Esgeiriau Gwynion

Pt. 505.5m

505.5

SH 96714 19988

497.1

SH 96813 20159

8.4

Deletion

Aran Fawddwy

Pt. 844.2m

844.2

SH 86926 24690

833.6

SH 86852 24656

10.5

Addition

Aran Fawddwy

Pt. 657.9m

657.9

SH 85683 20921

648.1

SH 85705 20958

9.8

Deletion

Cadair Idris

Pt. 686.3

686.3

SH 73642 13623

678.1

SH 73540 13543

8.2

Deletion

Y Garn

Cefn Blaen Merin

552.9

SN 81271 81064

538.1

SN 81424 81034

14.8

Addition

Y Garn

Bryn Llochesau

563.8

SN 82447 80795

554.1

SN 82319 80472

9.7

Deletion


The hills whose status has subsequently been confirmed by a Trimble GeoXH 6000 survey appear below:


The Welsh Highlands Sub-Tops (P10 to <P15)

Group

Name

Summit (m)

Summit GR

Bwlch (m)

Bwlch GR

Drop (m)

Change

Carnedd Llywelyn

Craig Eigiau

688.4

SH 71280 64670

678.2

SH 71218 64674

10.2

Addition

Glyder Fawr

Tryfan

910.8

SH 66393 59332

901.6

SH 66378 59359

9.2

Deletion

Moelwyn Mawr

Pt. 524.3m

524.3

SH 66117 45783

513.5

SH 66131 45774

10.7

Addition

 

Myrddyn Phillips and Aled Williams (March 2023)

  

 

The Welsh Highlands –November 2015 introductory article


The Welsh Highlands –June 2019 article giving first update


The Welsh Highlands - January 2023 article giving second update 





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