Cradle Mountain is a locality and mountain in the Central Highlands region of the Australian state of Tasmania. The mountain is situated in the Cradle Mountain-Lake St Clair National Park. Cradle Mountain sits between the Big River and Northern Tasmanian Aboriginal nations. Aboriginal Tasmanians were persecuted by the European settlers upon their arrival, and the last free Aboriginals in the area were seen just south of Cradle Mountain in 1836.
Cradle Mountain is formed by an igneous dolerite sill that intruded the Permian-Jurassic sedimentary layers, cooling to form a broad hard layer. Subsequent erosion from Pleistocene glaciation left caps of dolerite at Cradle Mountain, and surrounding peaks.In the 1910s Gustav and Kate Weindorfer climbed Cradle Mountain. They found the land beautiful and Gustav proclaimed "This must be a national park for the people for all time. It is magnificent, and people must know about it and enjoy it".
They began campaigning for the area from Cradle Mountain to Lake St Clair to be a national park, and set up a popular chalet the next year. It was declared a scenic reserve in 1922, a wildlife reserve in 1927 and its current designation of national park from 1947.