The Hygrade Claims is a lead 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: Lead
Lat, Long: 44.2942, -114.72780
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.
Hygrade Claims MRDS details
Site Name
Primary: Hygrade Claims
Secondary: Little Leslie 1-4
Commodity
Primary: Lead
Tertiary: Molybdenum
Tertiary: Silver
Tertiary: Gold
Location
State: Idaho
County: Custer
District: Unorganized District; Sunbeam Area
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
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Prospect
Operation Type: 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
Alterations
Alteration Type: L
Alteration Text: Oxidation
Rocks
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous
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: AVERAGE ASSAY FROM 3 SAMPLES WAS 0.42-0.64 OZ AU AND 1.66 - 6.96 OZ AG PER TON.
Materials
Ore: Galena
Ore: Molybdenite
Ore: Silver
Ore: Gold
Gangue: Quartz
Gangue: Pyrite
Gangue: Chalcedony
Comments
Comment (Location): Located On the W Side of Yankee Fork, 2.7 Mi N of Sunbeam.
Comment (Workings): Workings Consist of 1 Caved Adit About 100 Ft Above River Level and 3 Short Adits.
References
Reference (Deposit): U.S. Bureau Of Mines Open-File Report MLA 6-91, 1991, Table A-3, No. 401, P. 202.
Reference (Deposit): Choate, Raoul, 1962, Geology And Ore Deposits Of The Stanley Area: Idaho Bureau Of Mines And Geology Pamphlet 126, 120 P
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.
