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Chester Mine

Producer in Shoshone county in Idaho, United States with commodities Silver, Lead, Copper
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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. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Ownership information
  15. Production statistics
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. Reporter information

Geologic information

Identification information

Deposit ID 10073326
MRDS ID W019359
Record type Site
Current site name Chester Mine
Related records 10120988

Geographic coordinates

Geographic coordinates: -116.04323, 47.50317 (WGS84)
Elevation 1006
Relative position 1 MI SW OF OSBURN

Site location context

Political divisions (FIPS codes)

Shoshone(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Kellogg East(quadrangle 1:24,000 scale)

Coeur D'Alene(quadrangle 1:100,000 scale)

Spokane(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

South Fork Coeur d'Alene(hydrologic unit)

Spokane(hydrologic accounting unit)

Kootenai-Pend Oreille-Spokane(hydrologic subregion)

Pacific Northwest(hydrologic region)

Geographic areas

Country State County
United States Idaho Shoshone

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 048N 003E 14 Idaho

Commodities

Commodity Importance
Silver Primary
Lead Tertiary
Copper Tertiary

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Lower Wallace Form.-Calcareous Quartzite
    Rock description Lower Wallace Form.-Calcareous Quartzite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -116.04323, 47.50317
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Polaris And Silver Summit Faults

Ore body information

  • Length 15.24M

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Coeur D' Alene District (Evolution)

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Hecla (Sunshine Min. Co.)
  • Type Owner
    Owner Chester Min. Co.; Hecla ( 54.2 % )

Production statistics

  • Year 1966
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^47.44 Oz Ag/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Ore Silver Silver 1339g/mt
  • Year 1967
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^36.89 Oz Ag/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Ore Silver Silver 1042g/mt
  • Year 1968
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^33.7 Oz. Ag/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Ore Silver Silver 952g/mt
  • Year 1969
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^23.32 Oz Ag/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Ore Silver Silver 658g/mt
  • Year 1970
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^32.39 Oz. Ag/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Ore Silver Silver 915g/mt
  • Year 1971
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^12.63 Oz. Ag/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Ore Silver Silver 357g/mt
  • Year 1972
    Period 1961 - 1972
    Material ORE
    Accuracy Accurate
    Description Cp_Grade: ^39.3 Oz. Ag/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Ore Silver Silver 1110g/mt
  • Year 1974
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^11 Oz. Ag/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Ore Silver Silver 311g/mt

Comments on the production information

  • THE 1974 RECOVERY WAS 4519 OZ. AG; 1971 WAS 2475 OZ. AG; 1970 WAS 195,571 OZ AG; 1967 WAS 2,173,131 OZ AG; 1966 WAS 2,850,336 OZ AG. THE 1965 PRODUCTION WAS 50423 TONS ORE, AT 41.44 OZ/TON, 2,089,447 OZ AG RECOVERED

Comments on the reserve resource information

  • ITEM 2 REFERS TO 1969 RESERVES FROM THE 4600 FT LEVEL. RESERVES WERE EXPECTED TO BE DEPLETED BY END OF 1968 ; ORE RESERVES WERE DEPLETED AT END OF 1974.
  • ONLY 1400 TONS ORE KNOWN IN APRIL, 1973 ; AFTER BEING WORKED PROFITABLY BY HECLA FOR MANY YEARS, ORE BODY WAS ANNOUNCED DEPLETED.

Workings at the site

  • Type of workings Underground
    Length 2826.41M
    Overall depth 1645.92M

Comments on the workings information

  • CHESTER AREA IS 400 FT WIDE BY 1500 FT. LONG ADJOINING SUNSHINE UNIT AREA.

Comments on development

  • 12 ACRES; 200 FT WIDE STRIP ON EACH SIDE OF CHESTER VEIN. 12726 FT OF DIAMOND DRILLING BY END OF 1967. WORK BEING DONE FROM THE SUNSHINE 5400 FT LEVEL. 6 UNPATENTED CLAIMS.

Reference information

Bibliographic references

  • Deposit

    SPOKANE CHRONICLE, APRIL 5, 1971, APRIL 3, 1970; MAR. 1, 1968; AP. 9, 1975

  • Deposit

    WESTERN MINING NEWS, 1974 - 75 DIRECTORY OF MINES IN IDAHO (COEUR D'ALENES) AND WASHINGTON, P. 31.

  • Deposit

    HANSEN, O. T., 1966 , 66TH ANN. REPT. OF THE MINING INDUSTRY OF IDAHO FOR 1966 , P. 92

  • Deposit

    1966 COMPILE IDAHO MINE INSPECTOR'S 66TH ANN. REPT

  • Production

    SPOKANE CHRONICLE, AP. 5 , 1971 ; AP. 5 , 1972 ; AP. 3 , 1970 ; MAR. 1 , 1968 ; FEB. 24 , 1967 ; AP. 9 , 1975 ; MAR. 13 , 1969

  • Reserve-Resource

    WESTERN MIN. NEWS, 1974 - 75 DIRECTORY OF MINES IN IDAHO AND WASH., P. 31.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1975 Miller, Pat J. U.S. Geological Survey

Beyond USGS

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

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