Missouri Girl Mine

Montezuma County, Colorado, United States

Copper

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

PrimaryCopper

Commodity typeMetallic

Deposit

Model85: Polymetallic veins

Deposit sizeSmall

WorkingsUnknown

Orebody formVEINLETS, LENTICULAR MASSES, DISSEMINATED

Ore controlFaults, Fracture Zones Paralleling Monzonite Dikes; Coaly Material

Materials

Ore mineralsChalcocite, Malachite

GangueCalcite, Limonite, Pyrite

Geology

Host rockShale,Sandstone,Limestone · Dolores Formation, Near Base Of Formation

Associated rockMonzonite,Felsic Volcanic Rock · Monzonite Porphyry

StructureSan Juan Uplift (San Juan Mountains), La Plata Mountains Dome, Small Ne-Trending Fault About 0.5 Mile To Northwest; Parallel Faults, Fractures

Tectonic settingCentral Cordillera (Southern Rocky Mountains), Colorado Plateau

AlterationHydrothermal Alteration, Bleaching

Economic & production

Development statusPast Producer

First production1909

Discovery year1909

Community notes

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References

GODDARD, E.N., 1949, COPPER DEPOSITS OF THE BEAR CREEK DISTRICT, IN ECKEL, E.B., 1949, GEOLOGY AND ORE DEPOSITS OF THE LA PLATA DISTRICT, COLORADO: USGS PROF. PAPER 219, P. 70-72, 150-152.

Identification

Deposit ID10097847

MRDS IDD009280

Alternate namesMissouri Girl Deposit

RegionNA

Data scoreB

Coordinates37.5789, -108.17954