Govi-Altai (or Gobi-Altai) is a province in western Mongolia.
Gansu is a province in Northwestern China. Its capital and largest city is Lanzhou, in the southeastern part of the province. The seventh-largest administrative district by area at 453,700 square kilometres (175,200 sq mi), Gansu lies between the Tibetan and Loess plateaus and borders Mongolia's Govi-Altai Province, Inner Mongolia and Ningxia to the north, Xinjiang and Qinghai to the west, Sichuan to the south and Shaanxi to the east. The Yellow River passes through the southern part of the province. Part of Gansu's territory is located in the Gobi Desert. The Qilian mountains are located in the south of the Province.
Gansu has a population of 26 million, ranking 22nd in China. Its population is mostly Han, along with Hui, Dongxiang and Tibetan minorities. The most common language is Mandarin. Gansu is among the poorest administrative divisions in China, ranking last in GDP per capita as of 2019.
The Great Lakes Depression, also called the Great Lakes Hollow, is a large semi-arid depression in Mongolia that covers parts of the Uvs, Khovd, Bayan-Ölgii, Zavkhan and Govi-Altai aimags. Bounded by the Altai in the West, Khangai in the East and Tannu-Ola Mountains in the North,it covers the area of over 100,000 km (39,000 sq mi) with elevations from 750 to 2,000 m (2,460–6,560 ft).
Small northern parts of the depression are part of Russia.
Ejin (Mongolian: ᠡᠵᠡᠨᠡ ᠬᠣᠰᠢᠭᠤ; Chinese: 额济纳旗) is a banner in the far west of Inner Mongolia, China. It is under the administration of Alxa League and is the westernmost county-level division of Inner Mongolia, bordering Gansu province to the west and Mongolia's Bayankhongor and Govi-Altai Provinces. Its seat is located at Dalaihob Town. To the west, it shares a border with Subei Mongol Autonomous County of Jiuquan, Gansu.