Where does Sangzhi County in Hunan belong?

Sangzhi County, which belongs to Zhangjiajie, Hunan Province, is located in the northwest of Hunan Province, with a total area of 3,474 square kilometers, and governs 38 townships with a total population of more than 430,000, of which ethnic minorities account for 88%. Sangzhi County is the hometown of Marshal He Long and the starting point of the world-famous Long March of the Red Second Army. Jiutian Cave, the first cave in Asia, has become a bright pearl embedded in Zhangjiajie.