Geography. Darkhan-Uul aimag is surrounded with the low branch mountains of the Khentii Range and located in northern Mongolia at the north side of the Kharaa River which belongs to the Orkhon-Selenge River Basin. The area is elevated at 700-1,500m above sea level which is considered to be a relatively low area and the land surface is composed of a multiplex of forest steppe and mountains. Although the total area of the aimag is not as large as the others, it is rich in gold, calcareous, coal, construction materials and such natural resources.
Meteorology. Darkhan-Uul aimag has a severe continental climate and belongs to the Central Khangai zone. The average air temperature ranges between +40°C to +5°C in the summer months and drops down to -30°C to -7°C during the winter times. The annual precipitation is 3.2mm.
Soil. Most part of the Darkhan-Uul province is covered with mountain dark soil with some sediment soil formed with forest-dark and taiga soil.