Mines in Calvert County, Maryland
15Total
4Active
| 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 |