British Nuclear tests at Maralinga occurred between 1956 and 1963 at the Maralinga site, part of the Woomera Prohibited Area in South Australia and about 800 kilometres north-west of Adelaide. A total of seven nuclear tests were performed, with approximate yields ranging from 1 to 27 kilotonnes of TNT (4.2 to 113.0 TJ). Two major test series were conducted at the Maralinga site: Operation Buffalo and Operation Antler.