The Volcano Adventure Guide: Excellent information and background for anyone wishing to visit active volcanoes safely and enjoyably. The book presents guidelines to visiting 42 different volcanoes around the world.
Omanago volcano consists of 5 closey spaced lava domes in Nikko National Park. They are located north and NW of Nantai volcano.
The highest of the dacitic domes is 2367-m-high Omanago, which later erupted andesitic lavas. Mitsu-dake lava dome, which overlooks the hot spring resort of Lake Yunoko, was radioarbon dated at about 5000 years ago.
Mitsu-dake lava dome overlooks Lake Yunoko hot spring resort. Lake Yunoko is located at an altitude of 1478 m and is 3 km in circumference.
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