Mount Aso (Asosan) Kyushu Sightseeing Guide

Mount Aso (???, Aso-san) is an active volcano in the center of Kyushu. Its ancient caldera ranks among the world’s largest, with a diameter of up to 25 kilometers and a circumference of over 100 kilometers.
The huge caldera contains the town of Aso and several volcanic peaks, including Nakadake, whose spectacular, active crater is easily accessible to tourists by toll road or ropeway.
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