L:183
V:

Sinc y Giedd - Sink 3, Ogof Sink-y-Giedd


NGR: SN 81025 17905
435 m.asl

Powys , Northern Outcrop - West (Black Mountain)
 map using leaflet map:
Sink Cave
Access Third of three final sink points of Giedd and location. The sink is clearly marked on all OS Maps (but not on the first edition!).
Description A sink which has been dug by SWCC in 1947 to give access to a cave 180 metres long, ending in a tight bedding plane. Now completely blocked by flood debris. There is a 4 metre pitch to the lower level which is now heavily silted.
History SWCC 1947. Re-opened in 1970 and 1982
Hydrology Water took 50 hours to reach DYO resurgence (Peter Harvey, 1948) Tests
Conservation
Gallery


2011
Survey
SWCC 1970
GOG (partial)
Descent 227
References
The Geology of the South Wales Coalfield, Part V, A.Strahan, T.C. Cantrill, 1904, p.20
British Caver, 6, 1940, p.44
British Caver, 9, 1942, p.85
SWCC Newsletter, 20 August 1947
British Caver, 16, 1947, p.79
British Caver, 17, 1947, p.35
CRG nl.15, 1948. Harvey, P., Dye tests
British Caver, 18, 1948, p.50
Britain Underground, 1953
SWCC Newsletter 44, p.14, 1963, in Clive Jones, Digging prospects
Caves in Wales and the Marches (Dalesman), Jenkins, D.W. & Williams, A.M., 1st Ed.1963, p.45
SWCC Newsletter 51, 1965, p.9. Water tracing carried out in Wales.
SWCC Newsletter 66, 1970, p.24-27 Sink y Giedd reopened
SWCC Newsletter 67, 1970, p.29
SWCC Newsletter 97. 1983, p.27
Descent 227, p.8, Digging at Sinc-y-Giedd
Caves of South Wales, 1995, p.123
Descent 58, 1984
Caves and Caving 91, p.30, (2001), Nig Rogers, Operations at Sinc-y-Giedd (1991-94)
SWCC 75th Anniversary Publication, Vol.2, pp.184-194 (2021)
Search for further records Browse registry map
Cambrian Cave Registry entry 192
 © Caving Wales ⓗ Ogofa Cymru