Lake Nemrut on the southern slope of the caldera in 2007. The main thread in terms of ecology is overgrazing. Lake Nemrut Lake Nemrut () is a freshwater crater lake in Bitlis Province, eastern Turkey. It is part of Nemrut Caldera (), a volcanic caldera atop Volcano Nemrut. The caldera is a registered natural monument and the wetlandsis registered as a Ramsar site of the country. The caldera is located west of Lake Van in the Tatvan, Ahlat and Güroymak districts of Bitlis Province. It is named after the biblical figure King Nimrod. The caldera is far from Tatvan, and from Ahlat.
Mount Batu Mount Batu Mount Batu is one of the highest of the Bale Mountains of Ethiopia, as well as of the Oromia Region. Part of the Bale National Park, and located at , it reaches an elevation of 4,307 meters. It consists of two peaks, Tinnish Batu ("Little Batu"), which is actually higher than Tilliq Batu ("Big Batu") to the south. The reason for these deceptive names is explained by Paul Henze, who reports that upon viewing them, "it appeared that the peak behind Tinnish Batu was definitely higher." The first European to climb Mount Batu was the Finnish professor Helmer