Location: N45°41'00.0, E116°06'00.0 Erdenetsagaan soum of Sukhbaatar province.
Distance: 830 km southeast from Ulaanbaatar city, 270 km southeast from Baruun Urt town.
Altitude: 1233 m above sea-level
This mountain is located 75 km away to the south east of Erdenetsagaan soum centre, or on the boundary between Mongolia and China. Landscape of this area consists of mountains and plains. Average altitude is not higher than 1200 m and mountains have domed peaks and slope sides. South part of the mountain is much higher than other parts and the mountain become gently shorter into north side. Then, the end of the mountain consists of small hills and low ridges. All mountains around Lkhachinvandad, especially Arat and Khetsuu Janjin mountains, have lots of steep cliffs, and this area has rare surface water except from few springs. But the springs dry up some rainless years. Elm tree and some bushy plants like hedge- rose, wicker and black alder tree are found here. Fauna in this area also includes some rare plants like felwort, carnation, rise root, burnet, plantain, cornflower, locoweed, malt, white potato, salmon, wormwood, couch and stipa. This mountain has special flora because taiga deer inhabits here. In 1886, Inner Mongolian king presented two fawns to a popular social and religious figure Yeguzur Khutagt Luvsandash. The two fawns reproduced and became more than 20 by 1905 and it became around 100 by 1914 to 1915. Then, all deer become feral and inhabited Lhachunvandad, east and west Araat mountains. Around Lhachinvandad mountain, there are many rare animals like deer, roe deer, foxes, wolves, mask deer, ferrets, badgers, antelopes, marmots, sousliks, wall creepers, rabbits, mole rats, manul cats, and some birds like crows, hawks, owls, red crested birds, doves, upland buzzards, partridge, eagle, passal’s sand grouses, and also some migratory birds like cuckoos, martins, shelducks , cranes, bustards. The mountain had been protected during 1965 to 1995 as a Strictly Protected Area, and then the mountain became Natural Reserve in the latter year.