Okutama mine, Okutama-cho, Nishitama district, Tokyo Metropolis, Japan
The mine adit of the Okutama mine is just a few meters long. Mining operation lasted only a few years during World War 2. December 2011.
© Amir Akhavan
View of the Okutama Mine. There is just this one shaft in weakly metamorphosed, bedded and slightly folded sedimentary rocks (mudrocks, radiolarites). December 2011.