Gansu Province is the provincial administrative region of People's Republic of China (PRC), referred to as Gan or Long for short, with Lanzhou as its capital. Gansu province is located in the upper reaches of the Yellow River, the geographical center of the motherland; Shaanxi in the east, Sichuan in the south, Qinghai and Xinjiang in the west, Inner Mongolia and Ningxia in the north and Mongolia in the north; It belongs to temperate continental climate and subtropical monsoon climate. The total land area of the province is 425,900 square kilometers, which governs 12 prefecture-level cities and 2 autonomous prefectures.