The Alta Prospects is a uranium mine located in Custer county, Idaho at an elevation of 7,001 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: 7,001 Feet (2,134 Meters)
Commodity: Uranium
Lat, Long: 44.2875, -114.78560
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.
Alta Prospects MRDS details
Site Name
Primary: Alta Prospects
Secondary: Alta
Secondary: McClure
Commodity
Primary: Uranium
Tertiary: Silver
Tertiary: Antimony
Tertiary: Gold
Location
State: Idaho
County: Custer
District: Stanley District
Land Status
Land ownership: National Forest
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.
Administrative Organization: Challis National Forest
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Harry Mcclure
Production
Not available
Deposit
Record Type: Site
Operation Category: Prospect
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: Northern Rocky Mountains
Physiographic Detail: Salmon River Mountains
Mineral Deposit Model
Not available
Orebody
Form: LINEAR
Form: LINEAR
Structure
Type: R
Description: Idaho Batholith
Type: L
Description: Fault, Slickensides Plunge 15 Deg E, Brecciated, Gouge
Alterations
Alteration Type: L
Alteration Text: Sericitization, Kaolinization
Rocks
Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Analytical Data
Analytical Data: GRAB SAMPLE OF URANIFEROUS CHALCEDONY WAS ASSAYED AT 2.492 % U3O8. MAXIMUM RADIOACTIVITY WAS 0.28 MILLIROENTGENS/HR
Materials
Ore: Pitchblende
Ore: Uranophane
Ore: Stibnite
Gangue: Quartz
Gangue: Chalcedony
Comments
Comment (Location): BETWEEN EAST AND WEST FORKS OF UPPER HARDEN CREEK.
Comment (Development): 11 CLAIMS
Comment (Deposit): PODS OCCUR ALONG A 400-FT FAULT.
Comment (Workings): WORKINGS CONSIST OF AN ADIT AND A RAISE, EXPLORATORY BULLDOZER CUTS, AND SEVERAL SMALL PROSPECT PITS
Comment (Commodity): ORE GRADE MINERALIZATION HAS NOT BEEN FOUND. AU AND AG REPORTEDLY FOUND AT CLAIM.
References
Reference (Deposit): KERN, B. F., 1959, GEOLOGY OF THE URANIUM DEPOSITS NEAR STANLEY, CUSTER COUNTY: IDAHO BUR MINES AND GEOLOGY PAMPHLET 117, 40 P.
Reference (Deposit): 1959 GEOLMAP IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 117
Reference (Deposit): 1962 GEOLMAP IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 126
Reference (Deposit): CHOATE, RAOUL, 1962, GEOLOGY AND ORE DEPOSITS OF THE STANLEY AREA: IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 126, 120 P.
Reference (Deposit): U.S. BUREAU OF MINES OPEN-FILE REPORT MLA 6-91, 1991, TABLE A-3, NO. 390, P. 199.
Idaho Gold
"Where to Find Gold in Idaho" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Idaho. Read more: Where to Find Gold in Idaho.
