Known in English as Jiuzhai Valley it lies at the southern end of the Minshan mountain range, 330 km (205 mi) north of the provincial capital of Chengdu. It is part of the Jiuzhaigou County (formerly Nanping County) in the Aba Tibetan Qiang Autonomous Prefecture of northwestern Sichuan province, near the Gansu border.
The valley covers 720 km2 (278 sq mi), with buffer zones covering an additional 600 km2 (232 sq mi). Its elevation, depending on the area considered, ranges from 1,998 to 2,140 m (at the mouth of Shuzheng Gully) to 4,558 - 4,764 m (on Mount Ganzigonggai at the top of Zechawa Gully).
The lake is a shallow multi-colored lake whose bottom is criss-crossed by ancient fallen tree trunks.