November 2000 Qingcheng Mountain - Dujiangyan was included in the UNESCO Heritage Committee, "the World Heritage List."
The famous ancient water conservancy project, Dujiangyan, west of Dujiangyan City in Sichuan Province, known in ancient times and are all safe environment DUAN COUNTY weir, Song said after the Dujiangyan, known as the "independence Church through the ages" and "Jincheon treasure." Built in the third century AD, is the state of Qin during the Warring States Prefects Shujun Li Bing and his son, leading his men built a large water project, is the world so far, during the longest, the only retention, diversion dam is characterized by a non-ambitious water project . 2200 years, still play a huge benefit, Li Bing, flood control, power in the interest of future generations, is worthy of the great masterpieces of the civilized world, for the benefit of the people of the great water conservancy project. Is the world's longest to date, the only retention, diversion dam is characterized by a non-ambitious water project. China's science and technology in the history of a monument.
The main Department of Dujiangyan Dujiangyan Water Head Works, which is the key to the Dujiangyan irrigation system facilities. The main canal embankment by the fish head tapping, Po bottle spillway weir water diversion project and the sandstorm composed of three major projects. Po water bottle I dug treasure from the heap in the bottle before it is Jian Steller's rock part of the mountain. Bing under water and terrain features in the gentler slopes Department, scuttling a wedge-shaped hole in the bottom width 17 meters. Gap, 19 meters wide and dry season, flood season, 23 meters wide. According to "Yong Kang" carries "the occasion of spring, take it like gold, Hao Yue 'gold filling mouth'." Thus, also known as the ancient gold treasure bottle filling mouth. Po water bottle is Neijiang throat is Neijiang to "drought from the people", and water conservancy facilities. As the treasure bottle magnificent natural landscape, the "Gap from the heap lock," said, is the history of the famous "guanyang Ten Scenes" one.
Sandstorm is the middle of the spillway weir, there is discharge the functions of flood and sand, Po bottle with water diversion and control role. Thus, the Dujiangyan Irrigation Project scientific solution to the automatic river diversion, automatic flushing, automatic drainage and diversion of the problem, received a "line pour fields, the effect of flood disaster, the world's water project in the history of a great spectacle.
250 years, irrigation, so that Shu was the "land of abundance". Dujiangyan is the "Tianfu" rich source of irreplaceable still play a significant role, more than 1000 mu of irrigated farmland.
Dujiangyan tourism is blessed with large water conservancy project - Dujiangyan, the "fairyland" - Longchi National Forest Park, a Taoist mountain - Mount Qingcheng, there are many dotted landscape, historical sites and modern entertainment facilities, geographical location excellent, just 48 km away from Chengdu, the National Highway 213 goes through, is from Chengdu to Huanglong, Jiuzhaigou a must.