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Loon Creek Placers

Past Producer 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. Ore body information
  10. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Ownership information
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10070830
MRDS ID W013932
MAS/MILS ID 0160370707
Record type Site
Current site name Loon Creek Placers
Alternate or previous names Loon Creek Hydraulic Placer Co., Casto Bar, Oro Grande Bar, Grouse Creek Placer

Geographic coordinates

Geographic coordinates: -114.83264, 44.58408 (WGS84)
Elevation 1829
Relative position 26 MI NNE OF STANLEY; 30 MI E OF CHALLIS

Site location context

Political divisions (FIPS codes)

Custer(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Casto(quadrangle 1:24,000 scale)

Challis(quadrangle 1:100,000 scale)

Challis(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Middle Fork 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 014N 013E 01,02,11 NWNW (01) Idaho
Boise 015N 013E 36 Idaho

Comments on the location information

  • Claims Extend From Point Near Mouth of Canyon Creek To the Loon Creek Narrows, 4.5 Mi N.

Commodities

Commodity Importance
Gold Primary

Comments on the commodity information

  • Au Value At $18/Oz.

Analytical data

Result UPPER TERRACE GRAVELS AVG $0.25/YD AT A GOLD PRICE OF $20/OZ

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Clay, Mud
    Stratigraphic age (youngest) Holocene
  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel
    Rock unit name Alluvium-Gravels;Alluvium-Gravels, Sands, Clays
    Rock description Alluvium-Gravels;Alluvium-Gravels, Sands, Clays
  • Host or associated Host
    Rock type Unconsolidated Deposit > Sand and Gravel

Nearby scientific data

(1) -114.83264, 44.58408
ListMap

Economic information

Ore body information

  • Depth to bottom 12.19M

Controls for ore emplacement

  • Most Of Gold Is Near Bedrock Or In Joints Or Shallow Depressions In Bedrock

Economic information about the deposit and operations

Operation type Surface
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1869
Year of first production 1869

Mining district

District name Loon Creek District

Land status

Ownership category National Forest
Area name Challis National Forest

Ownership information

  • Type Owner
    Owner Loon Creek Hydraulic Placer Mining Co.

Comments on the production information

  • Production Value $500,000 - $2000000.

Workings at the site

  • Type of workings Surface
    Area 190.209HA
    Overall length 1524M
    Overall width 304.8M

Comments on the workings information

  • Work Was Done Mostly On the Alluvial Gravels, With Only Minor Work Being Done On the Terrace Gravels.

Comments on development

  • 6 Claims; Company Had A 4000 - Foot Timber Flume, A Dam Across Loon Creek, Ditches and Buildings ( 1934 )

Reference information

Bibliographic references

  • Deposit

    Umpleby, J. B., 1913, A Preliminary Account Of The Ore Deposits Of The Loon Creek District, Idaho: U. S. Geological Survey Bulletin 530, P. 66 - 74

  • Production

    Umpleby, J. B., 1913, USGS Bulletin 530, P. 66 - 74.

  • Deposit

    Yinger, M.A., 1976 , Geology Of The Eastern Part Of The Loon Creek Mining District, Custer County, Idaho: Moscow, Idaho, Univ. Of Idaho, M.S. Thesis, P. 94 - 96 .

  • Deposit

    Sibbett, B.S., 1976 , Geology Of The Northeast Part Of The Loon Creek Mining District, Custer County, Idaho: Moscow, Idaho, Univ. Of Idaho, M.S. Thesis, P. 100 - 104 .

  • Deposit

    Ross, C. P., 1934 , Geology And Ore Deposits Of The Casto Quadrangle, Idaho: USGS Bulletin 854 , 135 P.

  • Deposit

    Bell, R. N., 1907, Ninth Annual Report Of The Mining Industry Of Idaho, P. 73-74.

  • Deposit

    Bell, R. N., 1912, Fourteenth Annual Report Of The Mining Industry Of Idaho, P. 99.

  • Deposit

    Moore, F. C., 1909, Eleventh Annual Report Of The Mining Industry Of Idaho, P. 49.

  • Deposit

    U.S. Bureau Of Mines Open-File Report MLA 64-85, 1985, Table 10, No. 8, P. 175; Fig. 25, P. 173.

General comments

Subject category Comment text
Deposit The Deposit, Once Operated By the Loon Creek Hydraulic Placer Mining Co., Now (1982) Consists of Several Claims Held By Different Claimants. The Point of Reference, For Convenience, Is Placed At the Confluence of Grouse and Loon Creeks.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1974 Miller, Pat J. U.S. Geological Survey
Reporter 09-FEB-1994 Horn, Michael C. U.S. Bureau of Mines

Beyond USGS

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

Maps centered on this site