Honshu, Japan
36.78 N, 139.50 E
summit elevation 2367 m
Lava domes
Omanago volcano consists of five lava domes in Nikko National Park. Mitsu-dake lava dome overlooks Lake Yunoko hot spring resort.
The lake is located at an altitude of 1478 m and is 3 km in circumference.
Further Reading
Tsuboi S, Sugi K, 1926. Geological guide to the Nikko district. Pan-Pacific Sci Cong Guidebook Excur, B-1: 4-25
No recent eruptions.