The quarry's main attraction, 'The Cathedral', is a high main chamber 40 feet high, lit by two windows with a huge rock pillar supporting the roof.
Nearby is Slater's Bridge which dates back to the 17th century, and became a listed building in 1967. Built of slate, it consists of a 15-foot segmental arch and a flatter span built of slabs, and incorporates a natural boulder in midstream. The bridge is thought to have been created by miners working nearby.