Carmarthenshire
, Northern Outcrop - West (Black Mountain)
map using leaflet map:
Sink
Access
The sink is found alongside the Western edge of the main Brynamman to Llangadog road some 115 metres North West of the entrance track to Herberts Quarry. There are no restrictions for visiting, however during the summer the surrounding area is a very popular spot for tourists, hence making the site difficult to explore.
The water is believed to emerge at Llygad Llwchwr resurgence. Water tracing by chemical methods Must Not Be Used, as this is a public water supply.
Description
The sink takes a large flow of water during periods of wet weather. The water sinks just before the Ogof Y Nant dig which it feeds.