Clearwell Caves
The nine caverns open to the public at Clearwell are part of a mine complex extending over 245 hectares (600 acres).
The cave system consisting of thousands of caverns and over 30km (20 miles) of passageways, throughout the limestone strata which dips from west to east at an angle of 15 degrees.
The old mines extended down to 135 m (530 ft) below the surface but since deep mining and water pumping ceased in 1945 the water table has returned to its normal variable level of around 110-120 m (350-400 ft).
Clearwell Caves Postcode:
England > Gloucestershire > Forest of Dean > Coleford > Clearwell Caves