Mines in Calvert County, Maryland

Calvert County, Maryland has 15 mine and mineral deposit locations documented in federal records from the USGS and MSHA. 4 of these are currently active mining operations. The most commonly recorded commodity is sand and gravel, construction, with 4 sites. The table below lists all recorded mines in the county with links to individual site details.

All Mines in Calvert County

Mine	Commodity	Type	Status	Source
Kaylorite Corp. Greensand Pit	Stone, Crushed/Broken		Producer	MRDS
Lyons Ck. Diatomaceous Earth Deposit	Diatomite		Producer	MRDS
Unnamed Pit 1.2 Mi S. of Chaneyville	Sand and Gravel, Construction		Producer	MRDS
Unnamed Pit 1.6 Mi Sw of Chaneyville	Sand and Gravel, Construction		Producer	MRDS
Cove Point Placer	Titanium-Rutile, Titanium-Ilmenite	Placer	Past Producer	MRDS
Kaylorite Corp. Greensand Pit	Flagstone	Surface	Past Producer	MRDS
Lyons Ck. Diatomaceous Earth Quarry	Diatomite	Surface	Past Producer	MRDS
Mackall Building Stone Quarry	Stone, Dimension		Past Producer	MRDS
Mackall Building Stone Quarry	Stone, Dimension	Surface	Past Producer	MRDS
Old Clay Deposit	Clay		Prospect	MRDS
Old Clay Deposit N. of Solomons Is.	Brick Clay		Past Producer	MRDS
Old Greensand-Diatomaceous Earth Pit	Diatomite, Stone, Crushed/Broken		Past Producer	MRDS
Old Greensand-Diatomaceous Earth Qu	Diatomite	Surface	Past Producer	MRDS
Unnamed Pit	Sand and Gravel, Construction	Surface	Past Producer	MRDS
Unnamed Pit	Sand and Gravel, Construction	Surface	Past Producer	MRDS