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 Nemrut on this monument. The eastern portion is well preserved, being composed of several layers of rock, and a path following the base of the mountain is evidence of a walled passageway linking the eastern and western terraces. Possible uses for this site are thought to have included religious ceremonies, owing to the astronomical and religious nature of the monument. The arrangement of such statues is known by the term hierothesion. Similar arrangements have been found at Arsameia on Nymphaios at the hierothesion of the father of Antiochus, Mithridates I Callinicus. When the Seleucid Empire was defeated by the Romans in