Thistle Island is in the Spencer Gulf, South Australia, some 200 km west of Adelaide, and northwest of the Gambier Islands. The city of Port Lincoln lies to the northwest of the island. Between them, the Gambier Islands and Thistle form a chain across the mouth of the gulf between the southern tips of the Yorke and Eyre Peninsulas. As of 2014 the Royal Australian Navy operated an acoustic range in the waters west of Thistle Island, with a small control facility being located on the island itself.
- Collins concise atlas of the world (3rd ed.) (1993). London: HarperCollins.
- Morris, Alex (2014). "Submarine Acoustic Analysis Cell goes to SAAR" (PDF). The Trade (2): 15.
- "Whalers Bay Whaling Site, Thistle Island". South Australian Heritage Register. Department of Environment, Water and Natural Resources. Retrieved 12 February 2016.
- "Thistle Island Sealing Site (designated place of archaeological significance)". South Australian Heritage Register. Department of Environment, Water and Natural Resources. Retrieved 12 February 2016.
|This South Australia geography article is a stub. You can help Wikipedia by expanding it.|