Volcanic Ash Layer near the Mikagawa River(Mikagawa-no Kazanbai-so)

三ケ川の火山灰層

Evidence of massive volcanic eruptions in ancient times

You can see a volcanic ash layer along a section of the Ohechi route of the Kumano Kodo; the ash accumulated here are some of those ashes that were released during a series of massive eruptions that occurred 27,000 to 29,000 years ago in a volcanic system in Kagoshima Prefecture called the “Aira Caldera.” A signpost that indicates the location of this ash layer stands near the entrance gate to the forest trail, which is located close to the Mikagawa River.

Information

Area
Ago, Shirahama Town
Season / Time zone
Spring Summer Autumn Winter / Daytime
Weather conditions
Sunny Cloudy
Frequency of appearance
Year-round

Access

Take the Shirahama Town Community Bus and get off at “Mikagawa”[三ケ川] stop. (Reservation needed. The bus does not operate on Sundays or public holidays.) It is 45 minutes’ walk from the stop.

* To make a reservation to ride the Community Bus, please call the Shirahama-daiichi-koutsu (0739-42-2916, Japan).

Recommended spot

JR Kii-Tonda Station > Ago Ferry Crossing ("Ago-no-Watashi") Remains