葛川鉱山は滋賀県大津市にあった鉱山。 マンガンが採掘された。 オボレ谷沿いに分布し、坑口跡、石垣跡が残るらしい。 また同じくオボレ谷沿い、鎌倉山の北東尾根には比良鉱山もあった。
Kuzukawa mine was a mine in Otsu city, Shiga Prefecture. Manganese were mined. It is distributed along the Otole valley, it seems that the remains of the well head, Ishigaki remains. Also along the Otre valley, there was also Hira Mine in the northeast ridge of Mount Kamakura.