[3] In 1989, the mountain was the site of the SOS incident, an unsolved case involving missing hikers.

Mount Asahi is an active stratovolcano, 2,291 metres (7,516 ft) in height[3] that arose 3 kilometres (1.9 mi) southwest of the Ohachi-Daira caldera.

[3] The Japan Meteorological Agency gave the region rank C[4] in volcanic activity.

The volcano consists mainly of andesite and dacite,[4] Holocene volcanic non-alkali mafic rock less than 18,000 years old.

[4] Media related to Asahidake at Wikimedia Commons This Hokkaidō location article is a stub.