Clarke's Pool Meadow is a 1.8-hectare (4.4-acre) biological Site of Special Scientific Interest in Gloucestershire, notified in 1997. It lies on the flat top of 'Old Hill' about half a mile south of Blakeney. The site consists of two fields which were purchased by the Gloucestershire Wildlife Trust in 1997. The site was designated an SSSI in the same year and it is one of the finest surviving traditional hay meadows in Gloucestershire.