A heavy anti aircraft battery, consisting of eight emplacements. The site was largely cleared in the late 1940s and 1950s though the roads remain. The associated camp was to the south. Second World War heavy anti-battery probably built 1940 on Dartford Heath. It was part of the Thames and Medway Gun Defended Area. It is likely to have been for 4 guns (3.7-in. or 4.5-in). Probably decommissioned in 1945 it was reactivated in the Cold War. It was discontinued as a battery in the mid-1950s and was demolished in 1958, leaving some traces of roads and ground undulations within the park. Second World War Defended Locality DL101, Dartford Heath was centred on the heavy anti-aircraft battery on the heath, it was probably designated in 1940 and decommissioned in 1944.