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 Fairweather Mount Fairweather Mount Fairweather (officially gazetted as Fairweather Mountain in Canada but referred to as Mount Fairweather), is the highest mountain in the Canadian province of British Columbia, with an elevation of 4,671 metres (15,325 feet). It is located east of the Pacific Ocean on the border of Alaska, United States and western British Columbia, Canada. Most of the mountain lies within Glacier Bay National Park and Preserve in the City and Borough of Yakutat, Alaska (USA), though the summit borders Tatshenshini-Alsek Provincial Park, British Columbia (Canada). It is also designated as Boundary Peak 164 or as "US/Canada Boundary Point