Wolstonbury Hill is a 58.9-hectare (146-acre) biological Site of Special Scientific Interest south-west of in West Sussex.

No roads or car parks lie close to the summit so visitors have to ascend on foot or by mountain bike.

South of Hurstpierpoint ridge, the clay vale lies beneath the jutting profile and complex scarp and foot of Wolstonbury Hill.

The approach from the north is characterised by a network of linked or closely spaced woodlands (some parts ancient) centred on the designed landscape at Danny House.

Unknown quantities of Neolithic and early Bronze Age flintwork were discovered in a 1929 dig as well as "Romano-British" pottery, animal bones, and hammerstones.