Powys
, Northern Outcrop - Central (Penwyllt to Penderyn)
map using leaflet map:
Cave
Access
Permission should be sought from Blaen Nedd Isaf farm.
The entrance is in a shallow depression a few metres South of the bridge across the Nedd Fechan.
Description
A crawling entrance passage leads via an unstable boulder choke to a winding streamway rift into the main passage which ends in a sump. The sump is 50 metres long and leads to Little Neath River cave (Ogof Nedd Fechan).
The cave is actually a part of the Little Neath River Cave.
History
T.A.J.Braithwaite 1930's; SWCC 1947; UBSS, 1967.
Hydrology
Conservation
SSSI: 715
GCR: 556
Gallery
BCC/Barry Burn 2017
Brendan Marris 2008
Survey
UBSS 1970
CDG nl 24, Inlet Passage sumps
References
SWCC Newsletter, 20 August 1947, Cwm-Pwll-y-Rhyd
British Caver 17, 95-103, 1947
British Caver 19, 79-81, 84, 87, 1947. Note on survey
HCC Newsletter 2, 11-13, 1951
Cullingford,C.H.D. (1951), Exploring Caves, p.71
SWCC Our Caves No.3. Location, description and Survey
SWCC Newsletter 3, Accident Report
MNRC Newsletter 23, 3-6, 1961. Map of sinks above and below cave.
Caves in Wales and the Marches (Dalesman), Jenkins, D.W. & Williams, A.M., 1st Ed.1963
The Speleologist 2 (11), p.7, 1967, C.J.Gilmore, A prliminary report on the Little Neath River Cave
Proc.UBSS 12(3) p.322, Second Report on the Little Neath River Cave [Site 3 in or by the river bed]
CDG nl 24, p.23 (1972) Inlet Passage sumps
Caves of South Wales, Stratford, T., 1995
Selected Caves of Britain and Ireland, 1997
Descent 222 p.11, Martyn Farr, Access and rock fall
