Country/territory: Japan
Central coordinates (latitude / longitude): 38°19'59"N (38.3333°) / 139°50'59"E (139.8500°)
Area (reported): 190,000 hectares / 1,900.00 km² / 469,500 acres / 733.59 square miles
Area (GIS-derived): 189,920 hectares / 1,899.20 km² / 469,302 acres / 733.28 square miles
Altitude: 320–1984 m (1,050–6,508 ft)