Round Pool at Colliers Side limestone quarry Lilleshall.

Round Pool at Colliers Side limestone quarry Lilleshall.

Round Pool at Colliers Side limestone quarry Lilleshall. Originally separated from the main pool by a causeway – now flooded. Twice the depth of the other pool, at 30 ft near the causeway, can only signify a second deeper face. Courtesy of Shropshire Mining Club.