|Location:||At Tohma village, 30km from Asahikawa.|
|Classification:||Karst cave. Middle Jurassic limestones.|
|As far as we know this information was accurate when it was published (see years in brackets), but may have changed since then.
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Tohma cave is named after nearby village Tohma. Located on the northernmost Japanes Island Hokkaido, and rather high up in the mountains, is an example for an sub arctic cave. Speleothem growth in this cave is the lowest in all Japanese show caves.