Known in English as Jiuzhai Valley it lies at the southern end of the Minshan mountain range, 330 km 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 at least 240 km2, with some protection organizations giving the area as 600 to 720 km2, with buffer zones covering an additional 400 to 600 km2. 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 climate is cool temperate with a mean annual temperature of 7.2 °C, with means of -1 °C in January and 17 °C in July. Total annual rainfall is 661 mm, 80% of which occurs between May and October.