In 1917, a mineral deposit was found in the mountain, after which it was mined for nickel, which was necessary to support the production of weapons from 1933 to the end of the Pacific War.
1917年に鉱床が発見され、1933年から太平洋戦争末期にかけて兵器に不可欠なニッケルを確保するため大江山から採鉱。