Country/territory: China (mainland)
Central coordinates (latitude / longitude): 26°46'00"N (26.7667°) / 099°01'00"E (99.0167°)
Area (reported): 159,700 hectares / 1,597.00 km² / 394,627 acres / 616.60 square miles
Area (GIS-derived): 142,325 hectares / 1,423.25 km² / 351,693 acres / 549.52 square miles
Altitude: 1142–4379 m (3,746–14,364 ft)