RockWoofSketch map
Field cards: what kind of sites?
Produced ore or material at some point in the past.
Was producing when the record was made.
Status terms come from USGS MRDS records.
Minerals recorded here
Ilmenite 1Rutile 1Zircon 1Commodities
Diatomite 3Titanium-Rutile 1Titanium-Ilmenite 1Flagstone 1Zirconium 1Sites
| Site | Commodity | Minerals recorded | Status | Approx. location |
|---|---|---|---|---|
| Cove Point Placer | Titanium-Rutile, Titanium-Ilmenite | Ilmenite, Rutile, Zircon | Past Producer | 38.383, -76.385 |
| Lyons Ck. Diatomaceous Earth Deposit | Diatomite | — | Producer | 38.749, -76.684 |
| Old Greensand-Diatomaceous Earth Qu | Diatomite | — | Past Producer | 38.709, -76.695 |
| Kaylorite Corp. Greensand Pit | Flagstone | — | Past Producer | 38.721, -76.693 |
| Lyons Ck. Diatomaceous Earth Quarry | Diatomite | — | Past Producer | 38.749, -76.684 |
Fossil collections
The Paleobiology Database lists 134 fossil collection records in Calvert County. These are research records, not public dig sites.
Nearby counties
Prince George's County · Charles County · Queen Anne's County · Anne Arundel County · Montgomery County
Maryland mineral guides
- Quartz in Maryland
- Gold in Maryland
- Mica in Maryland
- Feldspar in Maryland
- Magnetite in Maryland
- Pyrite in Maryland
Back to all Maryland counties.
How we built this page: we counted named sites in the USGS Mineral Resources Data System (MRDS) for this area, left out sand, gravel, crushed stone, clay pits and unnamed sites, grouped them by Census county, and linked every site to its USGS record. We did not visit these sites, and MRDS does not tell you who owns the land or whether collecting is allowed.
Source: USGS Mineral Resources Data System (MRDS). USGS ceased systematic updates to MRDS around 2011, so status and details may be out of date. Each site links to its USGS record.
Updated