Mount Iō
硫黄岳
A 2,760-meter peak in Nagano featuring dramatic cliffs, alpine flora, and mountain huts within a quasi-national park.
What it is
- A 2,760-meter mountain peak located in the Yatsugatake Mountains of Nagano Prefecture
- Part of the Yatsugatake-Chushin Kogen Quasi-National Park spanning Chino and Minamimaki
- A high-altitude destination featuring a forest limit at approximately 2,600 meters
- A summit area characterized by steep cliffs on both sides of the peak
What to see
- Steep cliff faces located on both sides of the summit area
- Subalpine coniferous forests growing below the 2,600-meter forest limit
- Diverse alpine plants growing near the Io-dake Sanso mountain hut
- A Geospatial Information Authority triangulation point located near the peak
- The Io-dake Sanso mountain hut situated near the summit
- Hutte Natsuzawa and Yamabiko-so huts located at Natsuzawa Pass
Getting there
- Hiking trails connect to the mountain from Minoto via the Akadake Kosen hot spring
Notes written by Japan Gems from facts in Japanese Wikipedia.
Where it is
Mount Iō Open in Google Maps
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