[3] It makes up part of the Pelion Range within Cradle Mountain-Lake St Clair National Park in the Central Highlands region of Tasmania, Australia.

Several artifacts and campsites containing various stone types and tools have been discovered around Pelion to the north, and Lake St Clair (Tasmania) to the south.

For years it was thought that Cradle Mountain was the highest in Tasmania, with inexact equipment stymying attempts to closely examine the area.

[10] In 1892 the Mole Creek and Zeehan Mineral Prospecting and Exploration Company Ltd discovered Permian coal at the base of Mt Ossa and surrounding areas, excavating several tunnels.

[5] In the 1910s Gustav and Kate Weindorfer began campaigning for the area from Cradle Mountain to Lake St Clair, including Mount Ossa, to be a national park.