Country/territory: Japan
Central coordinates (latitude / longitude): 34°04'00"N (34.0667°) / 139°31'59"E (139.5333°)
Area (reported): 5,550 hectares / 55.50 km² / 13,714 acres / 21.43 square miles
Area (GIS-derived): 5,564 hectares / 55.64 km² / 13,749 acres / 21.48 square miles
Altitude: 0–814 m (0–2,670 ft)