Introduction to Qihe River: The Qijiang River at the foot of Luohe Mountain, with ancient names of Yelang Creek, Bo Creek and Nanjiang River, is a first-class tributary on the right bank of the Yangtze River, with a total length of 231.3 kilometers, running through the entire Qijiang County from south to north. The river basin is the longest in Qijiang County, with more than 30 large and small tributaries spread throughout the county, forming a dendritic water system with an even distribution of water networks. According to the historical record "Qijiang County" (Part 2) in Volume 69 of "Miscellaneous Notes of Du Shi Fang Yu": Qijiang River "is in the south of the county, that is, Yelang Creek. It flows from Nanchuan County and is also called Nanjiang River. When it reaches the county, its color is like blue silk, because Named Qijiang".