Otgontenger (Mongolian: Отгонтэнгэр, lit. "youngest sky") is the highest peak in the Khangai Mountains in Mongolia. Its summit is currently calculated to reach an elevation of 4,008 meters above mean sea level (some earlier topographic maps record a maximum elevation of 4,021 m). The mountain is located in Zavkhan Province and is the only peak in the Khangai range that is capped with a permanent glacier. The south face of Mount Otgontenger is the most extensive granite wall in Mongolia.
Since the introduction of Buddhism, traditional Mongolian beliefs have held that wrathful deities inhabit many of Mongolia's sacred mountains. Ochirvaani is particularly associated with Otgontenger. In August 1963, an Ilyushin 14 aircraft crashed into the side of the mountain while on route.