The Lightning 2 is a uranium mine located in Fremont county, Colorado at an elevation of 7,201 feet.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
Elevation: 7,201 Feet (2,195 Meters)
Commodity: Uranium
Lat, Long: 38.33333, -105.72333
Map: View on Google Maps
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Lightning 2 MRDS details
Site Name
Primary: Lightning 2
Secondary: Dac Uranium
Secondary: Lightning No. 1-8
Secondary: Honest John No. 1-15
Secondary: Lightning Group
Commodity
Primary: Uranium
Location
State: Colorado
County: Fremont
District: Cottonwood Creek Area
Land Status
Land ownership: BLM Administrative Area
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Year: 1956
Material type: ORE U3O8
Description: Ap_Grade: ^0.09 % U308
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Surface-Underground
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Southern Rocky Mountains
Mineral Deposit Model
Not available
Orebody
Form: fissure vein, pipe, stockwork
Structure
Type: R
Description: Sangre De Cristo Range
Type: L
Description: Shear Zone Localized Ore, But Deposit Occurs Near Terminations Of Two Large Fault Zones: One On East Flank Of Sangre De Cristo Mtns (Trends Nw), One Trending North, North Of Cotopaxi (Cotopaxi Fault); Numerous Small Cross Faults; Between Alvarado Fault, Pleasant Valley Fault; Near Trend Of Oak Creek Paleovalley Of Oligocene To Miocene Age
Alterations
Alteration Type: L
Alteration Text: Kaolinization
Rocks
Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Paleoproterozoic
Age Old: Paleoproterozoic
Name: Gneiss
Role: Host
Age Type: Host Rock Unit
Age Young: Paleoproterozoic
Age Old: Paleoproterozoic
Analytical Data
Analytical Data: 0.10 TO 0.177 % EU308
Analytical Data: RADIOACTIVITY TO 100 TIMES BACKGROUND
Materials
Ore: Autunite
Ore: Uraninite
Gangue: Kaolinite
Gangue: Hematite
Gangue: Limonite
Comments
Comment (Location): UNSURVEYED; BETWEEN SAND GULCH AND COTTONWOOD CREEK ; INFO FROM LAND.ST :(1976)
Comment (Workings): 49 NON-CORE HOLES TOTALLING 3180 FT DRILLED, ONE 120-FT CORE HOLE DRILLED, BULLDOZER CUTS, ADIT
References
Reference (Deposit): TAYLOR, R.B., SCOTT, G.R., WOBUS, R.A. AND EPIS, R.C., 1975, RECONNAISSANCE GEOLOGIC MAP OF THE COTOPAXI 15-MINUTE QUADRANGLE, FREMONT AND CUSTER COUNTIES, COLORADO: USGS MAP I-900, 1:62,500.
Reference (Production): NELSON-MOORE AND OTHERS, 1978
Reference (Deposit): NELSON-MOORE, J.L., COLLINS, D.B. AND HORNBAKER, A.L., 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULLETIN 40, P. 149-150
Colorado Mining Photos
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