The Top 9 Natural Monuments in the Ou Mountains
Ou Mountains’s landscape is a beautiful place to explore — something that you can best experience by visiting one of our 9
beautiful natural monuments in the Ou Mountains. To help you find the one for, you can see all the details you need to explore the best natural monuments, and better plan your next outdoor adventure!
beautiful natural monuments in the Ou Mountains. To help you find the one for, you can see all the details you need to explore the best natural monuments, and better plan your next outdoor adventure!
Last updated: November 27, 2025
Goshikinuma Ponds
Highlight (Segment) • Lake
Very nice way along several ponds along, which shine in different colors. Really worth seeing!
Translated by Google •
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Mt. Bandai's summit
Highlight • Summit
Mt. Bandai (or Bandaisan), is registered as a UNESCO Japanese Geopark since 2011. Mt. Bandai has known two major sector collapses and debris avalanches: one 50,000 years ago and the …
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Mt. Kushigamine
Highlight • Summit
Mt. Bandai is crossed by three peaks: Mt. Bandai's central peak, Kushigamine's peak, and Mt. Akahani's peak. Kushigamine can be recognized by its reddish/brownish rocky paths. The northeast side suffered …
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Akanuma Pond
Highlight • Lake
This marsh's (which is actually Mt. Bandai's caldera lake) reddish color is due to the erosion of the surrounding rocks after the many eruptions in Mt. Bandai, leaving extensive deposits …
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Remains of Bandai Onsen Nakanoyu
Highlight • Historical Site
There used to be three onsens (hot spring) sites on Mt. Bandai's northern side. But the phreatic explosion in 1888 led to heavy debris avalanches that destroyed the upper and …
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Goshiki-numa marshes (the Witch's Eye)
Highlight • Lake
This beautiful caldera is also known under the name Majo no Hitomi (the "Witch's Eye"), famous for its flower species sprinkled around the marsh (example of flowers you may encounter: Rhododendron brachycarpum f. nemotoanum, Veratrum stamineum, Rhododendron brachycarpum...)
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Mount Adatara — Crater and Trails
Highlight (Segment) • Volcano
Mt. Adatara is a fabulous mountain, one of Japan's 100 most famous mountains, located near Dake Onsen, with a ropeway station at the top, a beautiful orange crater and magnificent red leaves in autumn.
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Mt. Higashi-Daiten
Highlight • Summit
One of the many volcanoes / peaks that are a part of the Bandai-Asahi National Park and that is located between Yonezawa City (Yamagata Prefecture) and Fukushima Prefecture, culminating at …
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Goshikinuma (the "Witch's Eye")
Highlight • Lake
The Goshikinuma lake is also known under the name "majo no hitomi" 魔女の瞳 because of its round shape and dark blue color.
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