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 Ling (Beijing) Mount Ling (Beijing) Mount Ling (), also known as Mount Dongling (东灵山), Lingshan or Donglingshan, is a mountain in the Western Hills, an extension of the Taihang Mountains. It is located in Mentougou District, Beijing, about 120 kilometers to the west of downtown Beijing. The mountain is significant for its wildlife, especially birds. At an elevation of 2,303 metres, the summit is the highest point within the Municipality of Beijing. Mammals on Mount Ling include Tolai hare, Siberian roe deer, Chinese goral, Leopard cat, Siberian chipmunk, Pere David's rock squirrel and possibly Raccoon dog. Over 100 species of birds have