Country/territory: USA
Central coordinates (latitude / longitude): 48°28'00"N (48.4667°) / 104°25'00"W (-104.4167°)
Area (reported): 12,813 hectares / 128.13 km² / 31,662 acres / 49.47 square miles
Area (GIS-derived): 13,542 hectares / 135.42 km² / 33,463 acres / 52.29 square miles
Altitude: 579–640 m (1,899–2,099 ft)