Seven Third Summits Sumantri () and Ngga Pulu (). The definition of "continent" is a matter of some dispute among mountaineers seeking to complete this challenge. The main ridge of the Greater Caucasus range is generally considered to form the boundary between Europe and Asia. In that case, Mount Elbrus () and Dykh-Tau (), are the two highest mountains in Europe. Excluding the Caucasus Mountains, Mont Blanc () and Monte Rosa () would be Europe's two highest mountains. The Australian continent is defined as comprising the mainland of Australia and proximate islands on the same continental shelf, including Tasmania and New Guinea. In
Mount Olympus (Tasmania) the first work acquired by the gallery of an Australian-born artist. Another of Piguenit's Olympus paintings is held by the National Library of Australia. Nothofagus gunnii was first collected by Ronald Campbell Gunn in 1847 from Olympus. It is "Australia's only cold climate winter-deciduous tree", is found mainly in areas above 800 metres with rainfall of more than 1800mm, and is one of the plants that indicates Gondwana. Mount Olympus (Tasmania) Mount Olympus is a mountain in the Cradle Mountain-Lake St Clair National Park in Tasmania, Australia. It is the 24th highest mountain in Tasmania at above sea level and