Nigorikawa

What it is

• A volcanic caldera formed approximately 12,000 years ago in Mori Town, Hokkaido.
• The basin contains residential houses, agricultural land, and a hot spring area.
• The Mori Geothermal Power Station has operated within the caldera since 1982.
• The geology of the two-kilometer wide basin consists of andesite and dacite.

What to see

• The caldera wall which reaches a maximum elevation of 376.7 meters.
• The Nigorikawa Onsen hot spring area located on the caldera floor.
• A geothermal power station with a total output of 25,000 kilowatts.
• Agricultural land and residential areas situated inside the volcanic basin.

Notes written by Japan Gems from facts in Japanese Wikipedia.