Location: N47°39'00.0, E112°07'00.0 (Tumentsogt Mountain) Tumentsogt soum of Sukhbaatar province and Bayan Ovoo soum of Khentii province.
Distance: 464 km east from Ulaanbaatar city 158 km Northwest from Baruun Urt town.
Altitude: 1358 m above sea-level
Khar Yamaat Mountain, is a smallish mountain approximately 800-1365 m altitude, is located on the south bank of Kherlen River, 20 km away to the north west of Tumentsogt soum center and 16 km to the south of the Bayan tsogt soum centre. Absolute altitude gently decreases in the northern part. The highest point is Tumen Togt Mountain (1358 m). This mountain is a rare ecosystem in the steppe zone, including rare species of flora and fauna, as well as rocks, cliffs, forests and mineral springs. During winter, it is home to many antelopes and also migratory and water birds. There are some springs that continuously flow during the whole year, namely; Yamaatiin Bulag, Shariin Bulag and Chuluutiin Bulag. Kherlen river, the biggest in eastern Mongolia, runs along north off the mountain. Birch and poplar trees spread on the back sides of Khar Yamaat and Tumentsogt mountains. Plants in the mountains belong to Manchuria, eastern Mongolian and Mongol Daguur kinds. A total of 160 species of plants are found here and 30% of them are medical plants. There are also over 10 species of very rare plants. A forest consisting of poplar, birch, buckthorn, cornel and elm trees covers a 2 ha area. Some rare and medical plants like rose root, rose, aconite, plantain and valerian as well as some fruits like hawthorn and wild cherry grow here. Fauna in this mountain consists of; roe deer, antelope, rabbit, ground squirrel, fox, musk deer, badger, raccoon, wild cats and wolf, also many kinds of migratory and forest birds of eastern Mongolia visit. Herds of antelopes come here in springs and autumns. There also are some types of raptors like saker falcon, lesser kestrel, common kestrel, upland buzzard, golden eagle, black vulture and owl as well as some other birds like shell duck, mallard, gadwall, graylag goose, whooper swan, demoiselle crane and white napped crane. This area has been protected as Khar Yamaat Mountain Natural Reserve since 1998.