Nullarbor Regional Reserve

The Nullarbor Regional Reserve, established in 1989, spans approximately 19,198.51 square kilometers in South Australia. It is bordered by the Trans-Australian Railway to the north, the Nullarbor National Park, Nullarbor Wilderness Protection Area, and Yalata Indigenous Protected Area to the south, the Western Australia–South Australia state border to the west, and the Yellabinna Regional Reserve to the east. This reserve conserves the world's largest semi-arid karst landscape, featuring extensive cave systems and diverse wildlife, including the Southern Hairy-nosed Wombat. The area is also rich in Aboriginal cultural sites.