Rockhounding in Maryland

38 mapped spots across 12 counties. Maryland produces a wide range of rockhounding-grade material — see the full list of spots, minerals, and access notes below.

Top minerals found in Maryland

Counts reflect how many spots in this list mention each mineral.

Rockhounding by county in Maryland

County pages are linked once we have at least 3 mapped spots for a focused guide with coordinates, mineral notes, and nearby spots.

Every rockhounding spot in Maryland

Sorted by county. Tap coordinates to open in Google Maps, or open RockHoundR for the full map view with land overlays and weather.

Spot	County	Minerals	Coordinates	Access
Magothy RiverDrum Avenue North	Anne Arundel County	Pyrite	39.1153, -76.5670	Public
North Ferry PointNorth Ferry Point Road	Anne Arundel County	Amber Fossils	39.0857, -76.5026	Public
Sullivan CoveHolly Avenue	Anne Arundel County	Amber	39.0674, -76.5482	Public
BaltimoreLost Pond Trail	Baltimore County	Silicified Cycad Wood	39.4258, -76.4415	Public
Baltimore CountyScale House Boulevard	Baltimore County	Copper Quartz Garnet Tourmaline Aquamarine Beryl Marble	39.4687, -76.6505	Public
Bare Hills mining districtYellow Trail	Baltimore County	Actinolite Malachite Epidote Feldspar Garnet Moss Agate Pyrite Quartz +3 more	39.3871, -76.6523	Public
GraniteQuarry Trail	Baltimore County	Quartz Garnet Tourmaline Copper	39.3454, -76.8637	Public
White MarshRed Trail	Baltimore County	Amethyst	39.3883, -76.4469	Public
Calvert Cliffs State ParkJuliet Low Trail	Calvert County	Fossils Shark Teeth	38.4070, -76.4120	Public
Chesapeake BayBeach Boardwalk	Calvert County	Fossils	38.4477, -76.4548	Public
MiddlesburgeSharrett Road	Carroll County	Chrysocolla	39.6075, -77.2218	Public
New WindsorNew Windsor Road	Carroll County	Azurite Bornite Calamine Malachite Smithsonite Sphalerite	39.5363, -77.1052	Public
Union BridgeQuaker Hill Road	Carroll County	Pink Marble Green Marble	39.5541, -77.1726	Public
Elk MillsElk Mills Road	Cecil County	Beryl Garnet	39.6536, -75.8212	Public
Funks Pond Recreational AreaFunks Pond Trail	Cecil County	Kammererite Serpentine Soapstone Williamsite Chromite Brucite Magnesite	39.6707, -76.1718	Public
Rock SpringsOld Mill Road	Cecil County	Kammererite Serpentine Soapstone Williamsite Chromite Brucite Magnesite	39.7201, -76.1763	Public
Catoctin MountainManahan Road	Frederick County	Copper	39.6552, -77.4710	Public
Dollyhyde CreekDollyhyde Road	Frederick County	Bornite Pink Calcite Covellite Malachite Quartz	39.4740, -77.2262	Public
FrederickHillmark Court	Frederick County	Pink Fluorite	39.3893, -77.3883	Public
MiddletownWiles Branch Path	Frederick County	Stibnite	39.4400, -77.5600	Public
Point of RocksCatoctin Mountain Highway	Frederick County	Puddingstone	39.2755, -77.5416	Public
CardiffQuarry Road	Harford County	Garnet Pyrite Serpentine Staurolite Verde Antique Chrysotile	39.7096, -76.3342	Public
CastletonMason-Dixon Trail	Harford County	Quartz Tourmaline	39.6851, -76.2183	Public
Chrome HillRocks Road	Harford County	Smoky Quartz Actinolite Bronzite Garnet Chromite Serpentine	39.6278, -76.4093	Public
FlintvilleFlintville Road	Harford County	Feldspar Garnet Mica Quartz	39.7049, -76.2485	Public
Flintville (moss agate area)Shotgun Range Trail	Harford County	Moss Agate Jasper	39.6973, -76.2613	Public
Reed Mine & Walkens MineWest Jarrettsville Road	Harford County	Chromite Brucite Quartz Serpentine Soapstone	39.6119, -76.4572	Public
ClarksvilleSouth Wind Trail	Howard County	Marble	39.2007, -76.9132	Public
MarriottsvilleMarriottsville Road	Howard County	Quartz	39.3488, -76.8997	Public
Bear IslandChesapeake and Ohio Canal Towpath	Montgomery County	Apatite Epidote Amphibolite Sphene Zircon	38.9740, -77.2027	Public
GaithersburgLower Magruder Trail	Montgomery County	Serpentine Steatite	39.2285, -77.1903	Public
Hunting HillPiney Meetinghouse Road	Montgomery County	Calcite Diopside Garnet Opal Serpentine	39.0827, -77.2204	Public
Kensington Mica MineNorthwest Branch Trail	Montgomery County	Golden Beryl Mica	39.0569, -77.0118	Public
BeltsvilleBay Hill Drive	Prince George's County	Hyalite Opal Quartz Silicified Wood	39.0646, -76.9285	Public
Prince George’s CountyMartin Road	Prince George's County	Petrified Wood	38.6913, -76.7972	Public
AshtonBottom Road	Washington County	Serpentine Steatite	39.6204, -77.8681	Public
HancockNational Freeway	Washington County	Fossils Quartz	39.7170, -78.1953	Public
Ocean CityAtlantic Avenue	Worcester County	Quartz	38.4147, -75.0550	Public

Maryland rockhounding FAQ

Is rockhounding legal in Maryland?+

Casual hand collecting is allowed on most BLM and U.S. Forest Service land in Maryland, with daily and annual limits set by the managing field office. National parks, most state parks, and tribal lands are off-limits. Always confirm rules with the local agency before a trip.

What rocks and minerals can you find in Maryland?+

Maryland spots in this list most commonly produce Quartz, Serpentine, Garnet, Chromite, Fossils. The full list across all spots is broader.

How many rockhounding sites are in Maryland?+

RockHoundR currently lists 38 rockhounding spots in Maryland across 12 counties. Many more exist; the app keeps your private finds saved alongside the public ones.

Can I take rocks home from Maryland public land?+

On most BLM and Forest Service land, recreational hand collecting of common rocks and minerals is allowed in reasonable amounts. Vertebrate fossils, archaeological items, and posted mining-claim minerals are not. Check the field office for current limits.

Map every Maryland spot in the app

Open the RockHoundR app to see Maryland on a real map with public land overlays, weather, geology, and your saved finds.