Rockhounding in Montgomery County, Maryland
4 mapped rockhounding spots in Montgomery County. Most commonly produces serpentine, amphibolite, apatite, calcite.
Map showing 4 rockhounding spots in Montgomery County, Maryland
Spots in Montgomery County
| Spot | Minerals | Coordinates | Access |
|---|---|---|---|
| Bear IslandChesapeake and Ohio Canal Towpath | 38.9740, -77.2027 | Public | |
| GaithersburgLower Magruder Trail |
| 39.2285, -77.1903 | Public |
| Hunting HillPiney Meetinghouse Road | 39.0827, -77.2204 | Public | |
| Kensington Mica MineNorthwest Branch Trail |
| 39.0569, -77.0118 | Public |
Neighboring counties in Maryland
Adjacent rockhounding counties, ranked by how close their centroids sit to Montgomery County. A natural extension if Montgomery County is already on your trip plan.
- Frederick County~29 mi5 spotsTop: Bornite, Copper, Covellite
- Anne Arundel County~33 mi3 spotsTop: Amber, Fossils, Pyrite
- Carroll County~33 mi3 spotsTop: Azurite, Bornite, Calamine
- Baltimore County~37 mi5 spotsTop: Garnet, Quartz, Copper
- Harford County~60 mi6 spotsTop: Garnet, Quartz, Serpentine
- Cecil County~72 mi3 spotsTop: Brucite, Chromite, Kammererite
Across the state line from Montgomery 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.
- Adams County~52 miPennsylvania · 4 spotsTop: Chabazite, Copper, Epidote
- Cumberland County~72 miPennsylvania · 5 spotsTop: Quartz, Agate Nodules, Amethyst
- York County~73 miPennsylvania · 3 spotsTop: Agate, Amethyst, Andradite Garnet
- Lancaster County~75 miPennsylvania · 5 spotsTop: Brucite, Chromite, Dogtooth Calcite
Montgomery County FAQ
Where can I rockhound in Montgomery County, Maryland?+
RockHoundR tracks 4 rockhounding spots in Montgomery County. Each entry below has coordinates, mineral notes, and access type. Always confirm local rules before collecting.
What rocks and minerals are common in Montgomery County?+
Spots in Montgomery County most often produce Serpentine, Amphibolite, Apatite, Calcite, Diopside. Individual spots can vary widely.
Are these Montgomery County rockhounding spots on public land?+
Most spots in this list are tagged public, but access can change with seasons, claims, and local closures. Always verify before driving out — links in the app open the right BLM, USFS, or county pages.
Plan a Montgomery County rockhounding trip
Open RockHoundR to see these spots on the map alongside land overlays, weather, geology, and your saved finds.
