Claim: Stockstone Quarry, a site studied by the UK's Joint Nature Conservation Committee, is a 3.9-hectare geological site located in Surrey.
Evidence: Stockstone Quarry is a 3.9-hectare (9.6-acre) geological Site of Special Scientific Interest south of Farnham in Surrey. Stockstone Quarry Surrey Geological 3.9 hectares (9.6 acres) A Site of Special Scientific Interest (SSSI) in Great Britain or an Area of Special Scientific Interest (ASSI) in the Isle of Man and Northern Ireland is a conservation designation denoting a protected area in the United Kingdom and Isle of Man.