Gerrards Cross is a town and civil parish in south Buckinghamshire, England, separated from the London Borough of Hillingdon at Harefield by Denham, south of Chalfont St Peter and north bordering villages of Fulmer, Hedgerley, Iver Heath and Stoke Poges. It spans foothills of the Chiltern Hills and land on the right bank of the River Misbourne. It is 19.3 miles (31.1 km) west-north-west of Charing Cross, central London. Bulstrode Park Camp was an Iron Age fortified encampment.