Hygrade Claims

Prospect in Custer county in Idaho, United States with commodities Lead, Silver, Gold, Molybdenum
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Links to other databases
  18. Bibliographic references
  19. Reporter information

Geologic information

Identification information

Deposit ID 10070997
MRDS ID W014168
MAS/MILS ID 0160370401
Record type Site
Current site name Hygrade Claims
Alternate or previous names Little Leslie 1-4

Geographic coordinates

Geographic coordinates: -114.72873, 44.29409 (WGS84)
Elevation 2134
Relative position 2 MI N OF SUNBEAM

Site location context

Political divisions (FIPS codes)

Custer(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Sunbeam(quadrangle 1:24,000 scale)

White Cloud Peaks(quadrangle 1:100,000 scale)

Challis(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Salmon(hydrologic unit)

Salmon(hydrologic accounting unit)

Lower Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Salmon-Challis National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Idaho Custer

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 011N 015E 08 SE Idaho

Comments on the location information

  • Located On the W Side of Yankee Fork, 2.7 Mi N of Sunbeam.

Commodities

Commodity Importance
Lead Primary
Silver Tertiary
Gold Tertiary
Molybdenum Tertiary

Materials information

Materials Type of material
Galena Ore
Gold Ore
Molybdenite Ore
Silver Ore
Chalcedony Gangue
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Oxidation

Analytical data

Result AVERAGE ASSAY FROM 3 SAMPLES WAS 0.42-0.64 OZ AU AND 1.66 - 6.96 OZ AG PER TON.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Idaho Batholith-Quartz Monzonite, Granodiorite
    Rock description Idaho Batholith-Quartz Monzonite, Granodiorite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite

Nearby scientific data

(1) -114.72873, 44.29409

Economic information

Geologic structures

Type of structure Regional
Structure description Idaho Batholith
Type of structure Local
Structure description Fault

Ore body information

  • General form LINEAR
    Strike N 84 DEG W
    Dip 44 DEG N
  • General form LINEAR
    Dip 44 DEG N

Controls for ore emplacement

  • Fault N 84 Deg W, 44 Deg N

Economic information about the deposit and operations

Operation type Underground
Development status Prospect
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Unorganized District; Sunbeam Area

Land status

Ownership category National Forest
Area name Challis National Forest

Comments on the workings information

  • Workings Consist of 1 Caved Adit About 100 Ft Above River Level and 3 Short Adits.

Reference information

Bibliographic references

  • Deposit

    Choate, Raoul, 1962, Geology And Ore Deposits Of The Stanley Area: Idaho Bureau Of Mines And Geology Pamphlet 126, 120 P

  • Deposit

    U.S. Bureau Of Mines Open-File Report MLA 6-91, 1991, Table A-3, No. 401, P. 202.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1975 Yett, Jay R.; Miller, Pat U.S. Geological Survey
Reporter 04-NOV-1992 Ridenour, James U.S. Bureau of Mines

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.