Christmas Rocks Conservation Park is a protected area located in the Australian state of South Australia in the locality of Willalooka about 224 kilometres (139 mi) south-east of the state capital of Adelaide and about 29 kilometres (18 mi) south of the town of Keith. Land within the conservation park's boundaries is known to be a site for Prostanthera eurybioides (Monarto Mintbush), a species of plant which is listed as endangered both by the National Parks and Wildlife Act 1972 and the Commonwealth Environment Protection and Biodiversity Conservation Act 1999.