Zhangjiajie (simplified Chinese: 张家界; traditional Chinese: 張家界; pinyin: Zhāngjiājiè; Tujia: Zanxjiaxgaif /tsán tɕá kǎi/), is a prefecture-level city in the northwestern part of Hunan Province, China. It comprises the district of Yongding, Wulingyuan and counties of Cili and Sangzhi.