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Ohachidaira Caldera Pyroclastic Flow Deposit at Ten’ninkyo Gorge
Welded tuff spreads from lake Chubetsu to Ten'ninkyo Hot Spring. Lake Chubetsu is also…

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Nukkakushi Crater (a.k.a. Ansei Crater)
Nukkakushi Crater (a.k.a. Ansei Crater) is a ravine surrounded by three mountains, Mt.…

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Hokusei-no-Oka Observatory
From this pyramid-shaped viewing platform, you can see all the way from Mt. Daisetsuza…

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Block Slope on Central Cone Lava
Central Cone Lava shaped in eruption almost 500 years ago is called aa lava, which is …

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Unconformity between Ugetsuzawa Pyroclastic Flow Deposit and Bikai Formation
You can observe unconformity which is an overlapping joint between deposit in the shal…

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Tokachidake Hot Springs
Tokachidake Hot Springs take advantage of a main heat source of thermal activity at Nu…