Claim: Staines Moor is a 510.8 hectare (1,262 acres) biological site consisting of alluvial flood meadows in Surrey.
Evidence: Staines Moor is a 510.8-hectare (1,262-acre) biological Site of Special Scientific Interest north of Staines-upon-Thames in Surrey. Staines Moor consists of alluvial flood meadows, the King George VI Reservoir, the Staines Reservoirs and a stretch of the River Colne.