Country/territory: USA
Central coordinates (latitude / longitude): 42°40'00"N (42.6667°) / 113°19'00"W (-113.3167°)
Area (reported): 8,385 hectares / 83.85 km² / 20,720 acres / 32.37 square miles
Area (GIS-derived): 10,010 hectares / 100.10 km² / 24,735 acres / 38.65 square miles
Altitude: 1277–1344 m (4,189–4,409 ft)