It is a small volcano with 335m height. It became active 20 thousand years ago. Every time eruption happens, the lavas of andesite were piled up, gradually became higher and bigger, and created the shape now.
Here, you can observe the crater and the landform (2) of the lavas that was created when the the less sticky laves outflowed.
Hidden village of demon (3) is thought to be the lavas that were about to get hard was boosted up from the underground to the surface and stretched up like column.
There is an air hole where cold wind blows at the bottom of the second crater (1). They have spring water around the mountain and the one of them, “Takinogashira (a head of waterfall)”, is a precious water resource in Oga city.
The Head of Waterfall
There are a lot of spring water around Mt. Kampu and they are placed as encompassing the mountain. 30 places are recognized from the investigation in 1994. The spring water of the head of waterfall (4) at the northeast bottom has the most amount of water, and 25,000 tons of water spouts out per day. The water is used for waterworks and agriculture once saved in reservoir.
The spring water form the head of waterfall is located in the edge of the lavas that are erupted from the volcanic activity of the Mt. Kampu. The spring water comes from the rain fallen in the mountain going through the cracks, soaking into the underground, being cut from stratum impermeable to fluid and moving horizontally, and spouting out from the edge of lavas.
The Reclaimed Land of Hachiro-gata
The reclaimed land of Hachiro-gata (Ogata Village) (5, 6, 7) is the nation’s largest artificial land that was formed by the reclamation of Hachiro-gata which had second largest area following the Biwa Lake. It is 18 km long from south to north, 12 km from east to west, and 170 ㎡ of area. A nearly flat ground of the reclaimed land spreading in front of you is the surface of sand and mad stratum that were piled at the bottom of the lake of the former Hachiro-gata.
Between the south of Hachiro-gata and Japan Sea is sand hills called Tenno Sakyu (8).
More information on Mt. Kanpu