The remains of the California Quarry which closed in 1936. Green Moor stone was used outside the Houses of Parliament and the City Hall in Sheffield. Locally it is to be found in the Clock Tower War Memorial in Stocksbridge.
Green Moor’s quarries achieved national recognition from the quality, large size and strength of the flagstones they produced which had been recognised by the 18th century when they were specified in 1787 for use in the new St James’s Church in Sheffield and they were recognised as competitors with the stones produced in the Elland Edge district which from 1770 had the huge benefit of cheap waterway transport for their use in paving the streets of London.
Green Moor only had the (more distant) benefit of a canal from 1804 at Worsbrough basin or 1819 at Sheffield. Railways came to serve them in 1840 and 1845 respectively.
The best stone at Green Moor was described as finely, evenly and closely grained, and in 1858 the quarries produced flags, stone landings, copings, steps, sinks, gravestones.