Illinois Boy Mine

Hinsdale County, Colorado, United States

Gold 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

PrimaryGold, Copper

Commodity typeMetallic

Deposit

Deposit typeVein

Deposit sizeSmall

Ore controlNe-Trending Faults Within Eureka Graben

Materials

Ore mineralsChalcopyrite, Pyrite

GangueCalcite, Quartz

Geology

Host rockGranite

Associated rockQuartz Monzonite,Diabase,Rhyolite,Granite · Granite Of Cataract Canyon;Mafic Dikes;Eureka Member Of Sapinero Mesa Tuff;Ash-Flow Member Of Sunshine Peak Tuff

StructureSan Juan Volcanic Field, San Juan Depression, San Juan-Uncompahgre Calderas, Lake City Caldera, Silverton Caldera, Eureka Graben

Tectonic settingCentral Cordillera (Southern Rocky Mtns)

Economic & production

Development statusPast Producer

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References

BROWN, W.H., 1926, THE MINERAL ZONES OF THE WHITE CROSS DISTRICT AND NEIGHBORING DEPOSITS IN HINSDALE COUNTY, COLORADO: MINES MAG., V. 15, NO. 11, P. 5-15.LIPMAN, P.W., 1976, GEOLOGIC MAP OF THE LAKE CITY CALDERA AREA, WESTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-962.WOOLSEY, L.H., 1907, LAKE FORK EXTENSION OF THE SILVERTON MINING AREA, COLORADO: USGS BULL. 315, P. 26-30.BLM MINERAL SURVEY MS 7610KRASOWSKI, D.J., 1976, GEOLOGY AND ORE DEPOSITS OF BURROWS PARK, HINSDALE COUNTY, COLORADO: COLORADO STATE UNIV. M.SC. THESIS, 111 P.

Identification

Deposit ID10014743

MRDS IDD011655

Alternate namesMs 7610, Patented Claim: Illinois Boy

RegionNA

Data scoreB

Coordinates37.95195, -107.49535