Background: These uninhabited islands came under Australian authority in 1931; formal administration began two years later. Ashmore Reef supports a rich and diverse avian and marine habitat; in 1983 it became a National Nature Reserve. Cartier Island a former bombing range became a marine reserve in 2000.
Area Total: 5 km² Rank: 246 Land: 5 km² Water: 0 km² Note: includes Ashmore Reef (West Middle and East Islets) and Cartier Island Comparative: about eight times the size of The Mall in Washington DC
Population: no indigenous inhabitants Note: Indonesian fishermen are allowed access to the lagoon and fresh water at Ashmore Reef's West Island; access to East and Middle Islands is by permit only
Environment Current issues: illegal killing of protected wildlife by traditional Indonesian fisherman as well as fishing by non-traditional Indonesian vessels are ongoing problems
Disputes international: as the closest Australian territory to Indonesia these islands became the target of human traffickers for the landing of illegal immigrants; in 2001 the Australian government removed these islands from the Australian Migration Zone making illegal arrivals ineligible for temporary visas and entry into Australia