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.
Orontes II Mount Nemrut detailing the ancestry of Antiochus I Theos of Commagene mentions an ancestor whose name was incompletely preserved, and who was a son of Aroandas. This Aroandas (Orontes) is inferred to be the second ancestor of Antiochus listed in the inscriptions from Mount Nemrut who bore that name, succeeding the first Aroandas, who in turn was the son of Artasyrus and who married Rhodogune, the daughter of Artaxerxes II of Persia. Friedrich Karl Dörner and John H. Young (1996) interpreted the first preserved letter of the name of the son of Aroandas II as a delta, so that the