Dymock Woods (grid reference SO684288, SO692290, SO697283) is a 53-hectare (130-acre) biological Site of Special Scientific Interest in Gloucestershire, notified in 1990. The site is listed in the 'Forest of Dean Local Plan Review' as a Key Wildlife Site (KWS). The site is divided into three units of assessment and includes the Gloucestershire Wildlife Trust nature reserve known as Betty Daw's Wood which is unit 3.