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  3. Mineral Resource Data System (MRDS)

Willow Flats Placer

Prospect in Custer county in Idaho, United States with commodity Gold
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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. Host and associated rocks
  8. Nearby scientific data
  9. Geologic structures
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10070984
MRDS ID W014150
MAS/MILS ID 0160370359
Record type Site
Current site name Willow Flats Placer
Alternate or previous names Willow Group, Willis Group

Geographic coordinates

Geographic coordinates: -114.93264, 44.26458 (WGS84)
Elevation 2134
Relative position 2.5 MI N OF LOWER STANLEY

Site location context

Political divisions (FIPS codes)

Custer(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Basin Butte(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 013E 22 SW Idaho

Comments on the location information

  • Located Near the Head of Upper Kelley Creek

Commodities

Commodity Importance
Gold Tertiary

Analytical data

Result AU 5 - 10 CENTS / PAN AT SURFACE, 25 CENTS/PAN NEAR BEDROCK

Host and associated rocks

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

Nearby scientific data

(1) -114.93264, 44.26458
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Idaho Batholith

Ore body information

  • General form IRREGULAR

Controls for ore emplacement

  • Stream Bed

Economic information about the deposit and operations

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

Mining district

District name Stanley District

Land status

Ownership category National Forest
Area name Challis National Forest

Ownership information

  • Type Owner
    Owner Jesse Lynch

Comments on the workings information

  • Most Work Prior To 1870; USBM Had 1 23 Ft. Hole.

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. 367. P. 190.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1975 Yett, Jay R.; Miller, Pat U.S. Geological Survey

Beyond USGS

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

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