Mount Wellington, Australia
Photo and text courtesy Steve Sorrell (fair use policy)
Mount Wellington forms the backdrop to Hobart, the capital of Tasmania. It causes a rain shadow, making Hobart Australia's second driest capital city (after Adelaide). It is composed of large Jurassic dolerite sills interspersed with Triassic sandstone and Permian mudstone through which the molten dolerite magma pushed. Charles Darwin climbed it in the 1830s during the research cruise of the Beagle.