Country/territory: China (mainland)
Central coordinates (latitude / longitude): 29°00'00"N (29.0000°) / 102°19'59"E (102.3333°)
Area (reported): 40,900 hectares / 409.00 km² / 101,066 acres / 157.92 square miles
Area (GIS-derived): 16,917 hectares / 169.17 km² / 41,803 acres / 65.32 square miles
Altitude: 1330–4551 m (4,363–14,928 ft)