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Mine detail: Free Gold Mine
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North America
United States
Colorado
Larimer
Previously called 'Free GoldPatented Claims: Air Dale LodeU Npatented Claims: Pandora Nos. 1-7Lucky HorseshoeBig Horn No. 1Gold SparkSilver DollarLancaster, MS 17457Copper Butte'
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Location
Lat / long:
40.72137, -105.59921
Resource(M)
Primary:
Gold, Silver
Tertiary:
Copper
Ore:
Chalcopyrite, Pyrite
Discovery year:
1905
Production
Operation type:
Unknown
Deposit type:
Vein
Production size:
Small
Development status:
Past Producer
Last production ended:
1939
Geology
Host rock:
Metamorphic Rocks--Felsic And Hornblendic Gneisses;Laramide Intrusive Rocks--Quartz Monzonite Porphyry
Host type:
Gneiss
Associated rock:
Laramide Intrusive Rocks--Quartz Monzonite Porphyry
Associated type:
Quartz Monzonite
Structure:
Front Range Uplift, Sherman Batholith, Poudre River Shear Zone, Elkhorn Creek Shear Zone
Tectonic:
Central Cordillera (Southern Rocky Mtns)
References
MRDS
D010591
DEP
10013998
Reference
{Deposit:: LOVERING, T.S., AND GODDARD, E.N., 1950, GEOLOGY AND ORE DEPOSITS O F THE FRONT RANGE, COLORADO: USGS PROF. PAPER 223, P. 285-286.}{Deposit:: COLORADO DIV. MINES INF. REPT. AND ANNUAL OPERATOR REPTS.}
Reporter
Schwochow, Stephen D.