03.10.18 Mynydd Ystum (SH 187 284)
Mynydd Ystum (SH 187 284) |
The Llŷn
is always a joy to visit, and especially its western part where sea meets land
and the ebb of time seems to be stilled.
Today I was out with Aled on a mini bagging bonanza with a number of
hills on our radar, all of which were planned to be Trimbled, however these
plans were not too strict and we decided that we would just see how things
progressed during the day.
Our first hill was
Mynydd Ystum, which is positioned in the central part of land as it narrows
toward the tip of the Llŷn overlooking the B 4413 road, which this morning was
relatively quiet with only a few vehicles passing to and fro. I parked beside this road on the grass verge
and once all necessary gear was sorted we headed through a gate to an open
field and a short walk toward the gorse laden upper slopes of the hill.
Mynydd Ystum is crowned
by the remains of an ancient hill fort named Castell Odo, which comprises two
concentric ramparts, which are now reduced in height. Centred on the summit is a triangulation
pillar with the high point of the hill about one metre from its base.
To our south-west the
morning’s sun highlighted the rock strewn bulk of Ynys Enlli as it rose skyward,
seemingly attached to the mainland from this viewpoint. Stretching north-eastward the coast continued
out of sight with the sea enveloping the land to the north, west and
south. It was a pleasure being on this
hill and taking in this scene as the play of sun and cloud cast light and
shadow across the land.
The rock carved bulk of Ynys Enlli |
As the Trimble gathered
its allotted data this scene slowly stood with its patch-worked fields, stone
walls and hedges, hill top and valley bottom and a never ending coast and
sea. I found it mesmerizing.
Gathering data at the summit of Mynydd Ystum |
Once the allotted data
were gathered and stored I packed the Trimble away and we made our way back
through the upper gorse to the open field below, as a number of cows frisked
our way, inquisitively running, then halting as they neared us, before they ran
off again.
The small herd of inquisitive and frisky cows |
Survey Result:
Mynydd Ystum
Summit Height: 146.2m (converted to OSGM15, Trimble GeoXH 6000)
Summit Grid Reference: SH 18705 28466 (Trimble GeoXH 6000)
Bwlch Height: 81.6m (LIDAR)
Bwlch Grid Reference: SH 19608 29535 (LIDAR)
Drop: 64.6m (Trimble GeoXH 6000 summit and LIDAR bwlch)
Dominance: 44.17% (Trimble GeoXH 6000 summit and LIDAR bwlch)
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