Mine detail: Spring Group

Previously called 'Spring No. 2Lady Cora HellenRevis MineClaims: Spring No. 1'

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Location: Larimer County, Colorado, United States, North America
Lat / long: 40.66859, -105.78533
dep_id: 10013862
mrds_id: D010392
Commodity type: metallic
Major mineral: Uranium
Trace mineral: Silver, Gold, Lead
Operation type: Unknown
Production size: Small ammount of material produced
Development status: Past Producer
ore: Galena, Pitchblende
gangue: Limonite
work_type: Surface/Underground
alteration: Sericitization
Reporter: Schwochow, Stephen D.
hrock_unit: Quartzofeldspathic Mica Schist And Gneiss And Hornblende Gneiss Undivided;Granitic Gneiss
hrock_type: Mica Schist
arock_unit: Pegmatite
arock_type: Pegmatite
Structure: Front Range Uplift, Sherman Batholith, Rawah Batholith, Ne-Trending Faults And Shear Zones
tectonic: Central Cordillera (Southern Rocky Mtns)
disc_yr: 1954
discr: S.L. And B.L. Lindsey (Claimants)
References:
  • Deposit:: NELSON-MOORE, J.L., AND OTHERS, 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULL. 40, P. 210.
  • Deposit:: PEARSON, R.C., AND OTHERS, 1981, MINERAL RESOURCES OF THE COMANCHE-BIG SOUTH, NEOTA-FLAT TOP, AND NEVER SUMMER WILDERNESS STUDY AREAS, NORTH-CENTRAL COLORADO: USGS OFR 81-578, P. 25-27
  • Deposit:: COLORADO DIV. MINES INF. REPT.
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