Seven Second Summits Guinea's Carstensz Pyramid, which is part of Indonesia (4,884 m). Following the Bass list, Mount Townsend is the second-highest summit (2,209 m) in Australia. According to the Messner list, Puncak Mandala (4,760 m) on New Guinea is the second highest of the Australian continent. Heights of mountain peaks in West Papua are poorly established, and Puncak Trikora has been listed as the second-highest summit on the island, but SRTM data do support a higher elevation for Mandala. Both lists count Mount Elbrus as the highest peak in Europe. This makes Dykh-Tau (5,205 m), located in Russia, the second-highest summit in
Mount Erebus Mount Erebus Mount Erebus () is the second-highest volcano in Antarctica (after Mount Sidley) and the southernmost active volcano on Earth. It is the sixth-highest ultra mountain on the continent. With a summit elevation of , it is located in the Ross Dependency on Ross Island, which is also home to three inactive volcanoes: Mount Terror, Mount Bird, and Mount Terra Nova. Several craters are located at the summit, including Side Crater, a nearly circular crater named for its location on the side of the main summit cone. The volcano has been active since about 1.3 million years ago and