Gansu province is located in the geographic center of the motherland, is located in the upper reaches of the Yellow River, a vast territory. Between latitude 32 ° 11 '~ 42 ° 57', longitude 92 ° 13 '~ 108 ° 46' between. The east of Shaanxi, and Ningxia Hui Autonomous Region adjacent to the northeast, south Sichuan, west of Qinghai, Xinjiang, Inner Mongolia, north, and bordering the People's Republic of Mongolia. Complex and varied topography of Gansu, mountain, plateau, plain, valley, desert, the Gobi, the type of complete, staggered distribution, terrain tilt from southwest to northeast. Strip of the terrain was like, 1655 kilometers from east to west, north and south 530 kilometers wide and complex landscape patterns can be broadly divided into six topographical regions with their own characteristics:

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