Dujiangyan Irrigation System, Sichuan Province China - Decorative Entrance, Part Of The Dujiangyan (Chinese: 都江堰; Pinyin: Dūjiāngyàn) Is An Irrigation Infrastructure Built In 256 BC During The Warring States Period Of China By The Kingdom Of Qin. It Is Located In The Min River (Chinese: 岷江; Pinyin: Mínjiāng) In Sichuan Province, China, Near The Capital Chengdu. It Is Still In Use Today To Irrigate Over 5,300 Square Kilometers Of Land In The Region Photo