, Northern Outcrop - West (Black Mountain)
map using leaflet map:
On open moorland on the North East slope of Foel Fraith. The cave entrance is near the site marked 'Pwll Swnd' on Sheet 160 of the 1:50000 series maps. It lies just downhill of the outcrop of the 'Honeycomb Sandstone' which is easily identifiable.
A small upper series leads to a pitch and an extensive lower series.
Pitch 1- 9 metres
Pitch 2 - 8 metres
Pitch 3 (Wishing Well) - 8 metres
Pitch 4 (Basement) - 15 metres
West End Pitch - 15 metres.
Discovered by A.Hill and Miss G.Tudor in 1939; independently by Gerard Platten, Easter Monday, 1939 (Weaver in Wessex CC Jnl No 288,and logbook)
Explored and extended by HCC in 1971