Minnesota Mine

Saguache County, Colorado, United States

Copper Lead Silver Zinc

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, Lead, Silver, Zinc

Commodity typeMetallic

Deposit

Deposit sizeN

Ore controlSee Comments

Materials

Ore mineralsChalcopyrite, Galena, Sphalerite

Geology

Host rockAndesite · Rawley Andesite

Associated rockAndesite · Rawley Andesite

StructureSawatch Range, San Juan Volcanic Field, Rio Grande Rift, Bonanza Caldera

Tectonic settingCentral Cordillera (Southern Rocky Mtns.)

AlterationEarly Barren Stage Of Alteration By Fumarolic Or Acid-Hot Spring Activity Resulted In Intense Silicification, Wallrock Replacement By Jasper And Alteration Products Hematite, Diaspore, Alunite, Barite, Zunyite, Rutile, And Kaolin Minerals. Later Mineralizing Stage By Alkaline Or Neutral Solutions Deposited Ore And Gangue And Caused Micaceous Alteration (Sericite And Chlorite) And Calcite, Quartz, And Pyrite.

Economic & production

Development statusOccurrence

Community notes

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References

PATTON, H.B., 1916, GEOLOGY AND ORE DEPOSITS OF THE BONANZA DISTRICT, SAGUACHE COUNTY, COLORADO: COLORADO GEOLOGICAL SURVEY BULL. 9, 136 P.BURBANK, W.S., 1932, GEOLOGY AND ORE DEPOSITS OF THE BONANZA MINING DISTRICT, COLORADO: USGS PROF. PAPER 169, 166 P.

Identification

Deposit ID10013081

MRDS IDD009177

RegionNA

Data scoreB

Coordinates38.32695, -106.11116