Various kinds of minerals used to be found here, and because Mt. Oe had many metal-bearing veins, copper-bearing ores, copper pyrites, sulfide ores, chrome iron ores and silver-bearing ores were mined in the Komori Mine, while molybdic (yellow lead) was mined in the Busshoji Mine.
この地ではかつてさまざまな鉱物が産出されており、特に大江山は金属鉱脈が多く河守鉱山では銅鉱・黄銅鉱・硫化鉱・クロム鉄鉱・銀鉱が、また仏性寺鉱山ではモリブデン（水鉛）が採掘された。