Country: Heard Island and McDonald Islands (territory of Australia) - Geography Total area: 412 km2; land area: 412 km2 Comparative area: slightly less than 2.5 times the size of Washington, DC Land boundaries: none Coastline: 101.9 km Maritime claims: Contiguous zone: 12 nm; Continental shelf: 200 meters or to depth of exploration; Exclusive fishing zone: 200 nm; Territorial sea: 3 nm Climate: antarctic Terrain: Heard Island--bleak and mountainous, with an extinct volcano; McDonald Islands--small and rocky Land use: 0% arable land; 0% permanent crops; 0% meadows and pastures; 0% forest and woodland; 100% other Environment: primarily used as research stations Note: located 4,100 km southwest of Australia in the southern Indian Ocean - People Population: uninhabited - Government Long-form name: Territory of Heard Island and McDonald Islands Type: territory of Australia administered by the Antarctic Division of the Department of Science in Canberra (Australia) - Economy Overview: no economic activity - Communications Ports: none; offshore anchorage only - Defense Forces Note: defense is the responsibility of Australia