The Bailong River or Khuchu, Drukchu is a 576km-long river in the Yangtze River basin. From its source to confluence with the Jialing River, the Bailong is actually longer and is thus the main stem of the Jialing River system. The scenic Jiuzhaigou reserve is found along one of the Bailong's tributaries. Two reservoirs have been constructed in Wen County. Th…The Bailong River or Khuchu, Drukchu is a 576km-long river in the Yangtze River basin. From its source to confluence with the Jialing River, the Bailong is actually longer and is thus the main stem of the Jialing River system. The scenic Jiuzhaigou reserve is found along one of the Bailong's tributaries. Two reservoirs have been constructed in Wen County. The reservoirs serve to provide hydroelectricity, aquaculture, flood control, irrigation and for tourism development.