Mount Azumaya, Volcanic summit in Nagano, Japan
Mount Azumaya rises 2,354 meters above sea level, forming a natural border between Nagano Prefecture and Gunma Prefecture in central Japan.
The mountain formed between 900,000 and 300,000 years ago through andesite lava flows, with a major eruption creating a 3-kilometer caldera 340,000 years ago.
The mountain carries different names in Japanese characters, including 吾妻山 and 吾嬬山, reflecting regional linguistic variations across neighboring communities.
Multiple hiking trails connect to the summit, with the Gondola Palcabin providing summer access from Palcall Tsumagoi for easier mountain exploration.
The Azumaya Volcano system includes several connected peaks forming a circle: Mount Neko, Mount Azumaya, Mount Urakura, and Mount Kimyo.
Location: Ueda
Location: Suzaka
Location: Tsumagoi
Elevation above the sea: 2,354 m
Made from material: andesite
Part of: 100 Famous Japanese Mountains, 100 Famous Gunma Mountains
GPS coordinates: 36.54166,138.41280
Latest update: May 27, 2025 11:41
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