The Old Man Spring Prospect is a uranium mine located in Humboldt county, Nevada at an elevation of 6,224 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: 6,224 Feet (1,897 Meters)
Commodity: Uranium
Lat, Long: 41.90444, -118.15167
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.
Old Man Spring Prospect MRDS details
Site Name
Primary: Old Man Spring Prospect
Secondary: Chevron Oil Prospect?
Commodity
Primary: Uranium
Location
State: Nevada
County: Humboldt
District: Disaster District; Kings River; Thacker Pass 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
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Model Name: Volcanogenic U
Orebody
Not available
Structure
Type: R
Description: Mcdermitt Caldera, A Miocene Volcanic Collapse Feature About 40km Across
Type: L
Description: This Occurrence Is Near The Edge Of The Intracaldera Moat Where They Lap Up Against The W. Wall Of The Caldera
Alterations
Alteration Type: L
Alteration Text: Argillized, Limonite-Stained; Silicification
Rocks
Name: Mudstone
Role: Host
Age Type: Host Rock
Age Young: Miocene
Analytical Data
Analytical Data: U3O8 UP TO 0.13% WITH HIGH K (TO 10.9%) AND TH (0.5'%), AND ANOMALOUS AS, BA, F, HG, MO, SB, Y, ZR. LIMEY BEDS TO THE NORTH OF THE TRENCHES HAVE UP TO 41 PPM U3O8 AND HIGH AG. RADIOACTIVITY IS 2-3 X BG IN A AREA AS LARGE AS 20 YD SQUARE, AS A RESULT OF CAT WORK
Analytical Data: 3 SEPARATE ANOMALIES WERE NOTED ALONG THE N-S ROAD HERE. BEST RADIOACTIVITY IS NOT IN SOLID ROCK, BUT ONE BOULDER FROM THE PROSPECT ASSAYED 200 PPM U3O8 AND 207 PPM TH.
Materials
Gangue: Iron
Gangue: Clay
Gangue: Quartz
Gangue: Opal
Unknown: Barite
Comments
Comment (Deposit): THE HIGHEST RADIOACTIVITY IS ASSOCIATED WITH REDDISH-BROWN CLAY, POSSIBLY FAULT GOUGE. THIS OCCURRENCE IS AT THE EDGE OF THE SEDIMENTARY BASIN AND IN THE AREA OF THE CALDERA RING FRACTURE. AT THE EDGE OF THE SEDIMENTS, A SYSTEMATIC INCREASE IN PERMEABILITY CAN BE PREDICTED, WHICH WOULD FACILITATE THE MIGRATION OF SOLUTIONS INTO THE SEDIMENT HOSTS.
Comment (Workings): BULL-DOZED TRENCHES
Comment (Location): ALONG THE WESTERN EDGE OF BULL BASIN ABOUT 1 MILE ENE OF OLD MAN SPRING . INFO FROM LAND.ST :(1972)
References
Reference (Deposit): GREENE, R.C., 1976, USGS OFR 76-753.
Reference (Deposit): MITCHELL, T.P., 1980, FIELD EXAMINATION OF URANIUM OCCURRENCE
Reference (Deposit): WILLDEN, R., 1964, NBMG BULL 59, PL. I.
Nevada Gold
Nevada has a total of 368 distinct gold districts. Of the of those, just 36 are major producers with production and/or reserves of over 1,000,000 ounces, 49 have production and/or reserves of over 100,000 ounces, with the rest having less than 100,000 ounces. Read more: Gold Districts of Nevada.
