Mines in Knox County, Ohio

Knox County, Ohio has 23 mine and mineral deposit locations documented in federal records from the USGS Mineral Resources Data System and MSHA. 13 are currently active mining operations. The most commonly recorded commodity is sand and gravel, construction, with 11 sites.

Mine	Operator	Commodity	Type	Status
United Aggregates, Inc.	United Aggregates Inc	Construction Sand and Gravel	Surface	Active
Small's Sand & Gravel, Inc.	Small's Sand & Gravel Inc	Construction Sand and Gravel	Surface	Active
Fredericktown Plant	The Olen Corporation	Construction Sand and Gravel	Surface	Active
Select Materials-Millwood Operation	Select Materials	Sand, Industrial NEC	Surface	Active
United Aggregates Inc.	United Aggregates Inc.	Construction Sand and Gravel	Surface	Active
Briar Hill Brinkhaven Pit	—	Flagstone	Surface	Producer
Briar Hill Martinsburg Pit	—	Flagstone	Surface	Producer
Fredericktown Dredge	—	Sand and Gravel, Construction	Offshore	Producer
Fredericktown Pit	—	Sand and Gravel, Construction	Surface	Producer
Goodwin Sand and Gravel, Inc.	—	Sand and Gravel, Construction	Surface	Producer
Millwood Sand Quarry	—	Stone, Crushed/Broken	Surface	Producer
Purdy Pit	—	Sand and Gravel, Construction	Surface	Producer
Sandusky Dock	—	Sand and Gravel, Construction	Offshore	Producer