1996
SN8117 : Sinc y Giedd
taken 29 years ago, 3 km from Glyntawe, Powys, Wales

Sinc y Giedd
A river drains across the moorland of the Black Mountain to sink, on reaching the limestone, at Sinc y Giedd. This is the main source of the water emerging from Dan yr Ogof caves. In dry weather the water sinks upstream of this picture.