The Limestone Coast is a name used since the early twenty-first century for a South Australian government region located in the south east of South Australia which immediately adjoins the continental coastline and the Victorian border. The name is also used for a tourist region and a wine zone both located in the same part of South Australia. Extent The Limestone Coast is a South Australian Government Region which consists of land within the following local government areas located in the south east of the state: the City of Mount Gambier and the District Councils of Grant, Kingston, Robe, Tatiara and Naracoorte Lucindale and the Wattle Range Council, and the extent of "coastal waters" up to three nautical miles seaward of the low water mark between the border with Victoria in the east and the northern boundary of the Kingston District Council in the north-west. Industry regions with the same name Limestone Coast Tourism Region The words 'Limestone Coast' also used in the name of a tourism region which occupies a similar part of South Australia. The tourism region consists of the following local government areas: the City of Mount Gambier, The Coorong District Council, the District Councils of Grant, Kingston, Robe, Tatiara and Naracoorte Lucindale, and the Wattle Range Council. Limestone Coast Wine Zone The words 'Limestone Coast' also used in the name of a wine zone which occupies a similar part of South Australia. The wine zone is the land south of a line located at appropriately 36 degrees 50 minutes south, i.e. in line with Cape Willoughby at the east end of Kangaroo Island. The zone includes the following wine-growing regions: Coonawarra, Mount Benson, Mount Gambier, Padthaway, Robe and Wrattonbully. Location and description From the Victoria border to the Younghusband Peninsula this area has been settled since colonisation by mainly European settlers in the 1840s, displacing an indigenous population that had resided in the region for thousands of years. The region currently supports farming, viticulture, forestry and tourism. Towns include Bordertown, Keith, Millicent, Mount Gambier, Penola, and Naracoorte and the coastal resorts of Beachport, Kingston SE and Robe. Much of the Limestone Coast is low-lying, and was inundated by sea as recently as 2 million years ago. It had previously also been flooded 15–20 million years ago. The plains are lined by rows of low sandhills parallel to the coast, created at times when the coastline was