Qu River (Jialing River tributary)
The Qu River (Chinese: 渠江) is the largest left-bank tributary of the Jialing River, which is itself a tributary of the Yangtze River. It is also called the Qu He (渠河), and was known in ancient times as "Qianshui" (潜水), also named Yanqu Water. During the Two Jin dynasties, it was called Ba River or Ba Water, and after the Song dynasty, it was officially named Qu River. According to the "Shui Jing" (Water Classic): "The Qianshui originates in Dangqu County of Ba Commandery and flows south into the [Yangtze] River." The "Han Zhi" (Han Records) also notes: "In Dangqu County of Ba Commandery, the Qianshui flows southwest into the river." Because the Qianshui ran through the entire territory of Dangqu County, it was subsequently called Qu River or Qu He.