evidence: The Territory of Ashmore and Cartier Islands is made up of the West, Middle and East Islands of Ashmore Reef as well as Cartier Island and the surrounding 12 nautical mile Territorial sea. The islands are uninhabited, small, low and composed of coral and sand, with some grass cover. [...] Cartier Island is located in the West Sahul region of the Indian Ocean at 12°31'50.8" S, 123°33'18.8" E. The island is about 300 kilometres off Australia's Kimberley coast, 200 kilometres south of the Indonesian island of Roti and 70 kilometres from Ashmore Reef. The surrounding reef flat rises steeply from the surrounding depths. Cartier Island is an unvegetated sand cay at the centre of the reef. Cartier Island is 70 kilometres east of Ashmore Reef in the West Sahul region of the Indian Ocean at 12°31' S, 123°33' E. The island is about 300 kilometres off Australia's Kimberley coast and 200 kilometres south of the Indonesian island of Roti. The reef flat surrounding Cartier Island rises steeply from the surrounding depths to an unvegetated sand cay at its centre.