Located in the upper reaches of the Yellow River, northwest China, Gansu is one of the cradles of Chinese cultures. It occupies a total area of 450,000 square kilometers (173,700 square miles). Neighboring provinces are Shaanxi to the east, Sichuan to the south, Qinghai and Xinjiang to the west and Inner Mongolia and Ningxia Hui Autonomous Region to the north. With a population of 23.7 million, Gansu has a multinational population which includes ethnic minority groups of Kazak, Mongolian, Tibetan, Hui, Dongxiang, Tu and Manchu. They mutually influence each other in the fields of economics, politics and culture and hold close ties with the Han people. They have thus developed a unique cultural community.
On a map of China with a scale of 1:260,000,000, draw a circle at a radius of 90 mm (3.54inches) to include all China in it, and you will find that the center of this circle is Lanzhou, the capital city of northwest Gansu Province. Lanzhou is not only the geometrical center of China but also a center in the northwest in terms of transportation, telecommunication and the Silk Road Tourism Ring. Covering an area of 1631.6 square kilometers (629.96 square miles), Lanzhou is home to a population of 3.14 million, including Han, Hui, Bao'an, Dongxiang, Tibetan, Yugu and Sala and more.
The national, historical city of Dunhuang is a renowned tourist city famous for the Mogao Caves. It is situated in the common boundary of Gansu Province, Qinghai Province and Xinjiang Province. Dunhuang, long ago referred to as 'Sha Zhou' (beautiful desert oasis), was the hub of middle and eastern silk routes in ancient times. The city landmark is an attractive statue, the idea of which comes from the mural in Mogao Caves, a shrine to the culture and arts of Dunhuang. From Mt.Qilian in the south, Mt. Mazong in the north and desert from east to west, the landform of Dunhuang City is a declining basin-plain from west to northeast, high in the north and south, and low in the middle. The western cities of China, especially those in the desert, are known for their sandstorms, so tourists should protect themselves with glasses, hats and gauze kerchiefs, etc.
Physical Features: located in the area where the Qinghai-Tibet and Inner Mongolia Plateaus adjoin; borders the Mt. Qilian in the south, Heli Mountain and Longshou Mountain in the north, long and narrow clime which shapes as a running horse; the highest altitude in southeast reaches 5,564 meters (18,254 feet) and the lowest altitude in northwest is 1,284 meters (4,212 feet); the elevation of Zhangye City is 1,474 meters (4,835 feet)
Location: Longnan City is situated in the southeast of Gansu Province, neighboring Shaanxi Province in the east and Sichuan Province in the south. Within Gansu, Longnan borders Tianshui in the north and Gannan Tibetan Autonomous Prefecture in the west. History: The history of the Longnan region can be traced back to distant ages. By the time of the Zhou Dynasty (11th Century BC-221BC), Longnan had become the cradle of the Qin State which developed into the Qin Dynasty (221BC-206BC), the unifier of the whole country after the Warring States Period (476BC-221BC). Wudu Special District was established in 1949, changed to Longnan Region in 1985 and promoted to being a regional city in 2004.
Location: Gannan Tibetan Autonomous Prefecture is situated in the southwest of Gansu Province, neighboring Dingxi and Longnan in the east and Linxia Hui Autonomous Prefecture in the north. It is bounded on the south by Aba Tibetan and Qiang Autonomous Prefecture of Sichuan Province in the neighborhood of Guoluo, and Huangnan Tibetan autonomous prefectures of Qinghai Province in the west.