*** Welcome to piglix ***

Cribyn (hill)

Cribyn
Cribyn.jpg
The nose of Cribyn from its north ridge
Highest point
Elevation 795 m (2,608 ft)
Prominence 130 m (430 ft)
Parent peak Pen y Fan
Listing Hewitt, Nuttall, HuMP
Coordinates 51°52′54″N 3°25′10″W / 51.88169°N 3.41936°W / 51.88169; -3.41936Coordinates: 51°52′54″N 3°25′10″W / 51.88169°N 3.41936°W / 51.88169; -3.41936
Naming
Translation Little ridge
Geography
Cribyn is located in Brecon Beacons
Cribyn
Cribyn
Cribyn in the Brecon Beacons National Park (green area)
Location Powys, Wales
Parent range Brecon Beacons
OS grid SO024213
Topo map OS Landranger 160

Cribyn is a mountain in the Brecon Beacons with an elevation of 2608 feet (or 795 metres) about 300 feet lower than the neighbouring peaks of Pen y Fan and Corn Du. It is a prominent peak in the long and impressive escarpment facing north and running roughly east-west of the central section of the Brecon Beacons.

The summit lies on a ridge stretching from Talybont Reservoir in the east, to the A470 road. The ridge line to the west connects Cribyn with the peak of Pen y Fan. To the east, the ridge line descends to Bwlch ar y Fan, a col crossed by an ancient trail sometimes known as 'The Gap Road' before ascending again to the peak of Fan y Big.[1][2]

In common with other peaks of the Brecon Beacons, the upper slopes of Cribyn are formed from sandstones of the Brownstones Formation of the Old Red Sandstone laid down during the Devonian period. The lower slopes of the hill are formed from sandstones and mudstones of the underlying Senni Beds Formation. The rock strata tilt gently southward like the rest of the peaks in the range. The heads of Cwm Sere and Cwm Cynwyn, to the northwest and east of Cribyn respectively, nurtured small glaciers during the last ice age and there are rock moraines at the foot of the cliffs. The glacial erosion resulted in the very steep northern and eastern faces which the hill possesses.


...
Wikipedia

...