Gascoyne is an interim Australian bioregion located in Western Australia. It has an area of . Together with Murchison bioregion to the south, it constitutes the Western Australian Mulga shrublands ecoregion, as assessed by the World Wildlife Fund. Subregions It has three subregions named after localities or areas in the region: Ashburton GAS01 3,687,030 hectares (9,110,800 acres) Carnegie GAS02 4,718,656 hectares (11,660,050 acres) Augustus GAS03 9,669,571 hectares (23,894,030 acres) Protected areas Protected areas in the bioregion include: Barlee Range Nature Reserve Birriliburu Indigenous Protected Area Collier Range National Park Mount Augustus National Park References Further reading Thackway, R and I D Cresswell (1995) An interim biogeographic regionalisation for Australia : a framework for setting priorities in the National Reserves System Cooperative Program Version 4.0 Canberra : Australian Nature Conservation Agency, Reserve Systems Unit. IBRA regions Western Australian mulga shrublands