- For the Selwyn Range in the Canadian Rockies, see: Selwyn Range (Canada). Note also the Selwyn Mountains on the border between the Yukon and Northwest Territories in Canada.
The Selwyn Range (also known as the Isa Highlands) is a rugged mountain range near Mount Isa and Cloncurry in north-west Queensland, Australia, composed largely of Proterozoic metamorphic rocks. It is drained in the north by the Williams and Fullarton rivers, which run into the Gulf of Carpentaria, and in the south by the McKinlay River and its tributary, Boorama Creek which drain also into the Gulf of Carpentaria. The area is heavily mineralised, containing copper, gold, lead, and zinc, and is important for mining. It was formerly the home of the Kalkadoon people.
The climate of the Selwyn Range is tropical, monsoonal and semi-arid, with an erratic, mainly summer, annual rainfall of 380 mm. Vegetation cover is low eucalypt woodland and spinifex grassland.