Rosebery is a town on the west coast of Tasmania, Australia. It is at the northern end of the West Coast Range, in the shadow of Mount Blac…Rosebery is a town on the west coast of Tasmania, Australia. It is at the northern end of the West Coast Range, in the shadow of Mount Black and adjacent to the Pieman River, now Lake Pieman. It lies on the Murchison Highway, 25 kilometres north-east of Zeehan and is part of the Municipality of West Coast Council. At the 2021 census, Rosebery had a population of 752.