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
Cadillac Mountain Cadillac Mountain Cadillac Mountain is located on Mount Desert Island, within Acadia National Park. With an elevation of 1,530 feet (466 meters), its summit is the highest point in Hancock County and the highest within of the shoreline of the North American continent between the Cape Breton Highlands, Nova Scotia and Mexican peaks south of the Texas border. It is known as the first place in the U.S. to see the sunrise, although that is only true for a portion of the year. Before being renamed in 1918, the mountain had been called Green Mountain. The new name honors the