Mines in Hardin County, Ohio

Hardin County, Ohio has 8 mine and mineral deposit locations documented in federal records from the USGS and MSHA. 3 of these are currently active mining operations. The most commonly recorded commodity is limestone, general, with 3 sites. The table below lists all recorded mines in the county with links to individual site details.

All Mines in Hardin County

Mine	Commodity	Type	Status	Source
Portable Plant	Crushed, Broken Limestone NEC	Surface	Active	MSHA
Hardin Quarry	Limestone, General	Surface	Producer	MRDS
Standard Pit	Stone	Surface	Producer	MRDS
Boich Lime and Coal Quarry	Limestone, General		Past Producer	MRDS
Boich Lime and Coal Quarry	Stone, Crushed/Broken	Surface	Past Producer	MRDS
Forest Quarry	Crushed, Broken Limestone NEC	Surface	Abandoned	MSHA
Hardin Quarry	Limestone, General		Past Producer	MRDS
Hardin Quarry	Crushed, Broken Limestone NEC	Surface	Abandoned	MSHA