Dongchuan Introduction: Dongchuan is one of the six districts under the jurisdiction of Kunming City, Yunnan Province. It has a population of 302,000 and an area of ​​1858.79 square kilometers. It is adjacent to Huize in the east, Xundian in the south, Lulian in the west, and Huidong County in Sichuan Province in the north. Across the Jinsha River. The highest elevation in the territory is 4344.1 meters, the lowest altitude is 695 meters, and the height difference is 3649.1 meters. Tongdu Town, where the district government is located, is 1280 meters above sea level, with an area of ​​5 square kilometers, 140 kilometers away from Kunming City, and 316 kilometers away from Xichang City, the capital of Sichuan Liangshan Yi Autonomous Prefecture. Dongchuan is rich in resources and has a long history of copper culture. It is known as the “Tiannan Copper Capital”. Dongchuan District is located in the northeastern part of Kunming City, Yunnan Province, and is one of the six districts under the jurisdiction of Kunming City. It is adjacent to Huize County in the east, Xundian Hui and Yi Autonomous County in the south, Xilian Luquan Yi and Miao Autonomous County, and the north. Huidong County, Sichuan Province, is across the Jinsha River. The total area is 1885.79 square kilometers and the population is 310,000 (2008). The District People’s Government is located in the ancient copper road of Tongdu Town, 157 kilometers away from Kunming, the provincial capital.