The South Eastern Highlands is an interim Australian bioregion in eastern Australia, that spans parts of the states and territories of New South Wales, the Australian Capital Territory, and Victoria. The bioregion comprises 8,375,961 hectares (20,697,450 acres) and is approximately 3,860 kilometres (2,400 mi) long. The Australian Alps as well as the South West Slopes bound the region from the south and west of the Sydney Basin, as well as the bioregions of the South East Corner.