The Mann Ranch is a mine located in Jefferson county, Colorado at an elevation of 6,083 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: 6,083 Feet (1,854 Meters)
Commodity:
Lat, Long: 39.63, -105.17470
Map: View on Google Maps
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Mann Ranch MRDS details
Site Name
Primary: Mann Ranch
Secondary: Mann Mine
Commodity
Tertiary: Radium
Tertiary: Uranium
Tertiary: Vanadium
Location
State: Colorado
County: Jefferson
District: Front Range
Land Status
Land ownership: Private
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
Owner Name: J. L. Mann Uranium
Percent: 100.0
Home Office: Colorado
Info Year: 1975
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Underground
Mining Method: Unknown
Year First Production: 1955
Discovery Year: 1954
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
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Unknown: Pyrite
Unknown: Quartz
Unknown: Uraninite
Comments
Comment (Deposit): THE MODE OF ORIGIN IS STILL BEING DEBATED BETWEEN A HYDROTHE ORIGIN AND AN EPIGENETIC ORIGIN WHEREBY URANIUM WAS CARRIED SOLUTION BY GROUNDWATERS. ADDITIONAL INFORMATION FROM DMEA REPORT, DOCKET NO. 4382, DA 1956: AT THE TIME OF THE REPORT, THE CLAIM LEASER WAS URANIU PRISES, COLO. THE CLAIMS COMPRISE THE SE 1/4, NE 1/4 AND NE SE 1/4 OF SEC. 12, T. 5 S., R. 70 W., 6TH P.M. AT THE TIME O REPORT, PRODUCTION CONSISTED OF TWO SHIPMENTS, 6 TONS AVERAGE % U308, AND 900 TONS AVERAGING .30% U308. INCLUDED IN THE DM PORT ARE LOCATION AND GEOLOGIC MAPS. THE DMEA REPORT CONCLUD LIMITED ASSISTANCE FOR EXPLORATION BE APPROVED. ADDITIONAL INFORMATION IN BACKUP FILE.
References
Reference (Deposit): MINE MAP REPO # 404110 -403952 OWN/OP: URANIUM ENTERPRISE
Colorado Mining Photos
Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.
