Powys
, Northern Outcrop - Central (Penwyllt to Penderyn)
map using leaflet map:
Cave
Access
The cave has an obvious entrance halfway up on the right of the road from PenyCae to Penwyllt.
Description
A remnant of the OFD system. There was a voice connection to OFD 1, but this was sealed by SWCC
A short interesting cave with an upper entrance some 15 metres above the road. Once used as a limekiln.
History
Cyril Powell, 1927
Hydrology
Conservation
SSSI: 0099 Ogof Ffynnon Ddu (Mixed)
Gallery
Brendan Marris 2008
Gary Evans 2020
Survey
References
Wonderful Cave: Discovered at Craig y Nos: Interesting relic found in sand, Llew.E.Morgan, The Labour Voice/Llais Llafur (Ystalyfera), Jan 8, 1927, p.1