Calpatanna Waterhole Conservation Park is a protected area in the Australian state of South Australia located on the Eyre Peninsula in the gazetted localities of Calca, Mortana and Yanerbie about 25 kilometres (16 mi) south-east of the town centre in Streaky Bay.

[2] As of July 2016, the conservation park covered an area of 36.44 square kilometres (14.07 sq mi).

Found in association with these areas, Melaleuca halmaturorum tall shrubland forms a major vegetation type in the park.

The principal vegetation association however is a mallee scrub of Eucalyptus diversifolia in association with E. socialis, E. gracilis, M. lanceolata and Exocarpus sp… Though it has had some grazing history the park is in good condition and generally representative of the vegetation of the region.

The conservation park is classified as an IUCN Category IA protected area.