is an active stratovolcano of the Kameda peninsula. It is located in Hakodate, Hokkaidō, Japan. Mount Maru is also known as to distinguish it from other Mount Maru's and because of its close association with nearby Mount E.
Geology Mount Maru consists of non-alkali, mafic, volcanic rock. The andesitic volcano is topped with a lava dome.
Eruptive history Mount Maru was last active some 200,000 years ago.
References
External links Esan Maruyama - Geological Survey of Japan