Pelion Gap potholes, Cradle Mountain-Lake St Clair National Park, Tasmania, Australia.
From Pelion Gap on the Overland Track, see Cradle Mountain and natural rock potholes in Cradle Mountain-Lake St Clair National Park, Tasmania, Australia. The most extensive dolerite formations in the world dominate the landscape of Tasmania, where magma intruded into a thin veneer of Permian and Triassic rocks over perhaps a million years during the Jurassic breakup of supercontinent Gondwana in the Southern Hemisphere, forming vast dolerite/diabase sills and dike swarms. (North American geologists use the term diabase instead of dolerite to refer to the fresh, unaltered rock.) The Tasmanian Wilderness was honored as a UNESCO World Heritage Site in 1982, expanded in 1989. The famous Overland Track features mountains, temperate rainforest, wild rivers, alpine plains, abundant birds, and other wildlife.Add to Cart Add to Lightbox Download