Fan Bwlch Chwyth is a peak in the Fforest Fawr section of the Brecon Beacons National Park and within the county of Powys.

Fan Bwlch Chwyth
Fan Bwlch Chwyth viewed from the south
Highest point
Elevation	603 m (1,978 ft)
Prominence	27.8 m (91 ft)
Coordinates	51°52′57″N 3°34′53″W
Geography
Location	Powys, Wales
Parent range	Brecon Beacons
OS grid	SN912217

Its summit (at 603 m) is marked by a trig point at OS grid ref SN 912217.[1]

Geology

The hill is formed from sandstones and mudstones of the Senni Beds Formation and Brownstones Formation of the Old Red Sandstone laid down during the Devonian period. A north-northwest - south-southeast trending fault runs across its north-eastern face.

This face is much the steepest and has its origins in the ice ages when a minor glacier grew at this spot. It has left a couple of arcuate moraines which are readily seen from the track. The glaciated rock face has been quarried. The quarry is designated as a site of special scientific interest for its geological interest.[2]

Access

The entire hill is open country across which the walker can wander at will. A bridleway runs south-eastward from the minor road between Heol Senni and the A4067 road. The bridleway follows, in part at least, the vehicular track (no public vehicular access) to the disused quarry.

References

External links

• images of Fan Bwlch Chwyth on Geograph website