Baltimore: Silicified Cycad Wood Rockhounding in Baltimore County, Maryland
Updated June 2026
Baltimore is a mapped rockhounding spot in Baltimore County, Maryland. Reported finds include silicified cycad wood. Below: coordinates, access notes, nearby spots, and trip-planning links.
Map showing Baltimore in Baltimore County, Maryland
Quick details
- Access
- Permission required
- County
- Baltimore County
- State
- Maryland
- Nearest road
- Lost Pond Trail
- Postcode
- 21128
- Coordinates
- 39.42578, -76.44146
Geology at Baltimore
This spot sits on Baltimore Gabbro Complex, mapped as gabbro that formed roughly 2500 to 250 million years ago. Plutonic rock like this weathers slowly into grus and boulders, and the most productive collecting is typically in weathered zones and drainages.
- Mapped unit
- Baltimore Gabbro Complex
- Age
- 2500–250 Ma (Proterozoic to Paleozoic)
- Rock types
- gabbro
- Elevation
- 110 ft
Geologic mapping via Macrostrat and the underlying state geological survey maps (CC BY 4.0). Bedrock at the surface can vary within a mapped unit.
Land & collecting status
Permission required before collecting
Requires landowner or agency permission before any collecting. Do not enter without explicit authorization.
Public-land rules vary by agency, season, and field office. The RockHoundR app pulls live BLM, USFS, NPS, and tribal overlays so you can see exactly which agency manages the ground at this spot.
Sources & verification
Spot details combine the public RockHoundR location dataset, normalized mineral labels, agency land-status checks in the app, and community submissions. Coordinates are approximate until verified in the field.
Sources: RockHoundR public spot dataset, app land overlays, and local agency review before each trip.
Found at Baltimore
Each chip opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.
Nearby rockhounding spots
Other rockhounding spots within driving distance of Baltimore.
- White MarshBaltimore County, Maryland · 3 mi awayAmethyst
- Baltimore CountyBaltimore County, Maryland · 12 mi awayCopper, Quartz, Garnet
- Bare Hills mining districtBaltimore County, Maryland · 12 mi awayActinolite, Malachite, Epidote
- Reed Mine & Walkens MineHarford County, Maryland · 13 mi awayChromite, Brucite, Quartz
- Chrome HillHarford County, Maryland · 14 mi awaySmoky Quartz, Actinolite, Bronzite
- CardiffHarford County, Maryland · 20 mi awayGarnet, Pyrite, Serpentine
- Flintville (moss agate area)Harford County, Maryland · 21 mi awayMoss Agate, Jasper
- CastletonHarford County, Maryland · 22 mi awayQuartz, Tourmaline
Across the state line from Baltimore
Baltimore is close enough to the Maryland border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.
- Cecil CountyTop pick in PennsylvaniaLancaster County, Pennsylvania · 26 mi awayKammererite, Serpentine, Soapstone
- WrightsdaleChester County, Pennsylvania · 27 mi awayBrucite, Chromite, Magnesite
- Rock Springs RunLancaster County, Pennsylvania · 27 mi awayMoss Agate
- Nottingham ParkTop pick in PennsylvaniaChester County, Pennsylvania · 30 mi awaySerpentine, Garnet, Feldspar
- Grubb Lake and Mud LakeLancaster County, Pennsylvania · 44 mi awayGeode, Limonite
- AvondaleChester County, Pennsylvania · 45 mi awayQuartz, Smoky Quartz, Rutile
Baltimore FAQ
Where is Baltimore?+
What rocks and minerals can you find at Baltimore?+
Is collecting allowed at Baltimore?+
What tools should I bring to Baltimore?+
How do I get to Baltimore?+
More rockhounding in Maryland
See all 42 Maryland spots →Open Baltimore on the map
Use the RockHoundR app for live land overlays, weather, geology, directions, and saved finds.
