Tongren Jinjiang is very famous in Guizhou. Jinjiang originated in Fan Jing, the first mountain in Guizhou and one of the five famous Buddhist mountains in China. It flows through jiangkou county, Tongren Prefecture, then traverses the whole territory of tongren city from west to east, then enters Mayang County, Hunan Province, and finally joins Yuanjiang River in Chenxi County. Jinjiang has a total flow of 158km, a drainage area of 4,086.5km2, an average water surface width of 105m and a water depth of 10 ~ 30m, and is navigable for ships of 100- 150 tons.