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壹绪言汉源县位于大渡河中游,四川省雅安市西南部,县城东北距省会成都310公里。全境东西长71.45公里,南北宽70.1公里,幅员面积2388平方公里。汉源地处横断山脉北段东缘,为四川盆地与西藏高原的过渡地带,四周群山环抱,中部为河谷台地。大渡河自西向东流经县境南部,流沙河横贯南北,有丰富的水力资源,境内地质构造较复杂,矿产丰富,属北温带与季风带之间的亚热带地区,气温垂直变化显著,四季分明。汉源历史悠久,古为笮都之地,西汉元鼎六年(公元前111年)始设沈黎郡,天汉四年
One Introduction Hanyuan County is located in the middle reaches of the Dadu River, Ya’an City, Sichuan Province, southwest of the county northeast 310 kilometers from the provincial capital Chengdu. The whole thing grows 71.45 kilometers long, 70.1 kilometers wide from north to south, covering an area of 2388 square kilometers. Hanyuan is located in the eastern edge of the northern section of the Hengduan Mountains, a transition zone between the Sichuan Basin and the Tibetan Plateau. Surrounded by mountains, Hanyuan is a valley platform in the middle. Dadu River runs through the county from west to east in the south. The Lishahe River runs through the north and south with abundant water resources. The geologic structure in the territory is complex and rich in mineral resources. It belongs to the subtropical zone between the north temperate and the monsoon. The temperature changes vertically with distinct seasons . Hanyuan has a long history, the ancient capital of the land, the Western Han Dynasty Yuan Ding six years (111 BC) was established Shenli County, Tianhan four years