Trefil Quarry North was a limestone quarry, now disused. The quarries to the north are centred on SO 117140 and preserve a series of early tramroad lines. These were photographed from the air under parched conditions on 13th August 2003, which revealed the positions of buried sleepers. See NPRN 403799 for a tramroad in the southern part of the quarry.
T. Driver. 2005.11.30