Country/territory: China (mainland)
Central coordinates (latitude / longitude): 30°52'00"N (30.8667°) / 098°17'59"E (98.3000°)
Area (reported): 890,000 hectares / 8,900.00 km² / 2,199,238 acres / 3,436.31 square miles
Area (GIS-derived): 626,617 hectares / 6,266.17 km² / 1,548,404 acres / 2,419.38 square miles
Altitude: 2600–5274 m (8,529–17,300 ft)