The Yellow River is the second longest river in China and the fifth-longest in the world, with a length of 5464 km (the main stream), originating from the Yueguzonglie Basin, Bayanhar Mountains of Qinghai-Tibet Plateau in northwest China. The Upper Yellow River feeds four provinces and autonomous regions, and about 15 cities along the basin. It supplies a significant amount of water to the chemical, oil and mining industries in the middle and lower reaches.
Xu Dingyan is a full time staff from Green Camel Bell (parent organization of Upper Yellow River Waterkeeper), which is the first civic environmental organization in Gansu Province, China. She workes to improve the compromised and declining ecosystems around western China.