Gwaunceste Hill (Welsh: Bryn Gwaun-cest) is a 542-metre-high hill in the county of Powys in east Wales. It falls within the communities of Gladestry and Glascwm around 4 km east of the village of Hundred House and about 2 km north of the hamlet of Glascwm. The headwaters of the River Arrow gather on the eastern slopes of the hill. Drainage of its western slopes is into the River Edw, a tributary of the River Wye. Two subsidiary tops to the southeast and southwest are both known as ‘Little Hill’.

Gwaunceste Hill
Bryn Gwaun-cest
Map
Highest point
Elevation542 m (1,778 ft)
Prominence161 m (528 ft)
Parent peakGreat Rhos
ListingMarilyn
Coordinates52°11′30″N 3°13′58″W / 52.1917°N 3.2329°W / 52.1917; -3.2329
Naming
Language of nameWelsh
Geography
LocationPowys, Wales
OS gridSO 158555
Topo mapOS Landranger 148 / Explorer 200

Geology

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The hill is formed from mudstones, siltstones and sandstones of Silurian age. To its southeast the Church Stretton Fault Zone runs NE-SW past Gwaunceste Hill. Surrounding valleys and some of the hill’s slopes are mantled with glacial till from the last ice age whilst alluvium is found in the valley floors and peat deposits occupy hollows as at Beilibedw Mawn Pool and Llyn-y-waun to the north and west of the summit respectively.[1][2][3]

Access

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The entire hill is criss-crossed by public bridleways. Much of the hill is mapped as open country under the Countryside and Rights of Way Act 2000 and thereby available to walkers.[4]

References

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  1. ^ British Geological Survey 1:50,000 map sheet 197 Hay-on-Wye & accompanying sheet explanation
  2. ^ "BGS 'geology of Britain' viewer". Archived from the original on 2 December 2016. Retrieved 12 August 2013.
  3. ^ "BGS 'Geology of Britain' viewer". Archived from the original on 2 December 2016. Retrieved 12 August 2013.
  4. ^ Ordnance Survey Explorer map 200 Llandrindod Wells & Elan Valley
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