Hanzhong is a prefecture-level city in the southwest of Shaanxi province, China, bordering the provinces of Sichuan to the south and Gansu to the west.

The Han River, also known by its Chinese names Hanshui and Han Jiang (汉江), is a major river in Central China. A left tributary of the Yangtze, the longest river in Asia, it has a length of 1,532 km (952 mi) and is the longest tributary of the Yangtze system.