Rockhounding in Charles County, Maryland
3 mapped rockhounding spots in Charles County. Most commonly produces fossils, shark teeth, quartz.
Charles County rockhounding photos
Representative spot and material photos from this county, shown where verified public image records are available.
Map showing 3 rockhounding spots in Charles County, Maryland
Minerals reported in Charles County
Standouts in Charles County
Hand-picked spots in Charles County, chosen for unusual mineralogy or documented public access. Each card opens the full coordinates and access notes.
Top pickPurse State Park
PublicCharles County
Purse State Park sits on the tidal Potomac where the Paleocene Aquia Formation, roughly 56 to 60 million years old, is exposed along the shore, making its teeth older than the Miocene material at Calvert Cliffs. It is one of the best public places on the East Coast to find Paleocene shark teeth such as Otodus obliquus, along with ray dental plates. The site is documented by the Maryland Geological Survey and long-running fossil guides as a reliable free collecting beach.
Shark Teeth, Fossils
Top pickDouglas Point
PublicCharles County
Douglas Point is one of the few Bureau of Land Management recreation areas in the eastern United States, protecting about 1,270 acres of Potomac River shoreline jointly managed with the State of Maryland. Its beaches expose the same Paleocene Aquia Formation as nearby Purse State Park and yield fossil shark teeth and ray plates. The BLM's own visitor materials describe the shoreline as a fossil-bearing beach.
Shark Teeth, Fossils
Top pickMallows Bay Park
PublicCharles County
Mallows Bay is best known for the Ghost Fleet, more than 100 scuttled World War I era wooden steamships now protected within a national marine sanctuary and visible just off the shore. The park fronts the same Paleocene Aquia Formation shoreline as nearby Purse State Park, so beachcombers turn up the same water-worn shark teeth, fossil fragments, and quartz pebbles along the Potomac. It is a free Charles County park that pairs a striking maritime landscape with easy shoreline hunting.
Shark Teeth, Fossils, Quartz
Spots in Charles County
| Spot | Minerals | Coordinates | Access |
|---|---|---|---|
| Douglas PointRiverside Road | 38.4427, -77.2497 | Public | |
| Mallows Bay ParkWilson Landing Road | 38.4690, -77.2636 | Public | |
| Purse State ParkRiverside Road | 38.4303, -77.2528 | Public |
Neighboring counties in Maryland
Adjacent rockhounding counties, ranked by how close their centroids sit to Charles County. A natural extension if Charles County is already on your trip plan.
- Calvert County~44 mi3 spotsTop: Fossils, Shark Teeth
- Montgomery County~44 mi4 spotsTop: Serpentine, Amphibolite, Apatite
- Anne Arundel County~59 mi3 spotsTop: Amber, Fossils, Pyrite
- Frederick County~70 mi5 spotsTop: Bornite, Copper, Covellite
- Baltimore County~75 mi5 spotsTop: Garnet, Quartz, Copper
- Carroll County~77 mi3 spotsTop: Azurite, Bornite, Calamine
Across the state line from Charles County
Rockhounding counties in neighboring states within driving range. Geology rarely respects state borders — these are often the closest mapped spots you can reach without going deeper into Maryland.
Charles County FAQ
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