Location: 1160 km west of Ulaanbaatar in the Erdenehairhan soum of Zavkhan province.
Features: The Ulaagchiin Khar Lake is located in a great lakes depression, surrounded by fine sand dunes and mountains. The lake was formed about 5000 years ago and considered one of the oldest lakes in the world and covers 1980 m2, 48 m deep, 30 km long, 5-10 km wide. There are 2 islands in the middle of the lake, raised up to 3000 m above sea level. The nature reserve protects the Altai habitat home of Snow Leopard, Wild Mountain Sheep, Ibex, Gobi bear, Wild Bactrian camel, Jerboa, and Antelope.