It is 550 kilometers from nanzhao county via Fangcheng County, Wancheng District and Wolong District to Xinye County, Nanyang City. Baihe left Xinye and flowed into Hanshui River via Hubei Province, with a total length of only 30 kilometers, flowing to Xiangfan and merging into Hanshui River. Of course, it finally entered the Yangtze River.
There is water all the year round, the drainage area is 12500 square kilometers, and the total length of Nanyang city is 32 kilometers.