Maryland Mine

Montgomery County, Maryland, United States

Gold

Land & claims · BLM · live

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BLM MLRS ↗Claims at this point ↗Surface mgmt ↗

Surface manager + active mining claims at this point, live from BLM. The "open to location" notes are a general 1872-Mining-Law guide, not BLM output — decision-support only; verify with BLM MLRS and on the ground before staking or entry.

Commodities

PrimaryGold

Commodity typeMetallic

Deposit

Deposit sizeY

WorkingsUnderground

Orebody formLINEAR

Materials

Ore mineralsChalcopyrite, Galena, Pyrite, Pyrrhotite

Geology

Host rockMica Schist · Mica Schist, Wissahickon Formation

StructureReg.Trends: Northeast-Southwest, Both Schist And Quartz Traversed By Joints

Tectonic settingAppalachian Foldbelt

Economic & production

Development statusPast Producer

First production1868

Discovery year1860

Description

Private Carey (Or Mccleary)

Community notes

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References

REED, J.C.JR. AND REED, J.C., 1969, USGS BULL. 1286, PP. 4-9PEARRE, N.C., 1961, MAP MR-12WEED, W.H., 1905, USGS BULL. 260, PP. 128-131INGALLS, E.T., 1960, THE DISCOVERY OF GOLD AT GREAT FALLS, MD., PRIVATELY PRINTED , 18 PP1904 GEOCHEM E.T. ALLEN, ASSAY 4.25 OZ AU, 0.36 OZ AG/TOREED AND REED REFREED AND REED REF.

Identification

Deposit ID10068001

MRDS IDW000905

Alternate namesGreat Falls Mine?

RegionNA

Data scoreB

Coordinates38.99559, -77.23162