Big Heath Conservation Park
Big Heath Conservation Park (formerly the Big Heath National Park) is a protected area in the Australian state of South Australia located in the gazetted locality of Spence about 20 kilometres (12 mi) south-west of Naracoorte in the state's Limestone Coast region.[5][4] The conservation park is located on land in sections 17 to 20, 169 and 179, and Allotment 500 in the cadastral unit of the Hundred of Spence.[4][5] A drain known as 'Drain M', which is part of the drainage infrastructure built in the south east of the state since European settlement, passes through the south-east corner of the conservation park, carrying water from Bool Lagoon in the east to the sea at Beachport in the south.[10][11] As of July 2016[update], the conservation park covered an area of 24.72 square kilometres (9.54 sq mi).[2] As of 1994, the conservation park was reported as supporting a "diversity of vegetation types which correlate with the topography and soils of the area" as follows:[4] As of 1994, visitor use was reported as being "low" and was mainly concerned with "nature study by the local and Naracoorte communities.