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Pier & Cady Mine

Past Producer in Bonner county in Idaho, United States with commodities Silver, Lead, Zinc, Antimony, 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. Materials information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Production statistics
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10070145
MRDS ID W012856
Record type Site
Current site name Pier & Cady Mine
Alternate or previous names Whitcomb
Related records 10119528

Geographic coordinates

Geographic coordinates: -116.16215, 48.15404 (WGS84)
Elevation 671
Relative position 1/2 MI. N. OF TOWN OF CLARK FORK, IDAHO, ON S. SIDE OF MIDDLE MOUNTAIN

Site location context

Political divisions (FIPS codes)

Bonner(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Clark Fork(quadrangle 1:24,000 scale)

Sandpoint(quadrangle 1:100,000 scale)

Sandpoint(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Clark Fork(hydrologic unit)

Pend Oreille(hydrologic accounting unit)

Kootenai-Pend Oreille-Spokane(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management ID)

Bureau of Land Management ID BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Idaho Bonner

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 056N 002E 35 Idaho

Commodities

Commodity Importance
Silver Primary
Lead Primary
Zinc Critical Primary
Antimony Critical Secondary
Copper Tertiary

Comments on the commodity information

  • POST MINERAL MOVEMENT HAS FRACTURED THE GALENA AND PRODUCED SLICKENSIDED SURFACES

Materials information

Materials Type of material
Galena Ore
Sphalerite Ore
Pyrite Gangue
Quartz Gangue
Siderite Gangue

Analytical data

Result ASSAYS 24 OZ. AG/TON
Result 37% PB/TON

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
    Rock unit name Striped Peak Formation-Shales
    Rock description Striped Peak Formation-Shales
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -116.16215, 48.15404
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description On Broad W. Limb Of Syncline Axis Of Which Is In Montana.
Type of structure Local
Structure description Brecciated Zone; Beds As A Whole Considerably Disturbed And Interrupted By Faulting; Much Gouge

Ore body information

  • General form SWELL AND PINCH
    Strike N 30 DEG E
    Dip 27 DEG SE
    Thickness 0.1M
    Length 68.58M
    Width 30.48M
  • General form SWELL AND PINCH
    Dip 27 DEG SE
  • General form SWELL AND PINCH
    Dip 27 DEG SE

Controls for ore emplacement

  • Fault

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1926

Mining district

District name Clark Fork District

Land status

Ownership category Private

Production statistics

  • Year 1937
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^37.38 % Pb, .6 % Zn, .2 % Sb, 24.8 Oz/Ton Ag
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Silver Silver 700g/mt
    Major Ore Zinc Zinc 1wt-pct
    Major Ore Lead Lead 37wt-pct
    Ore Antimony Antimony 0wt-pct

Comments on the production information

  • ORE IN NO. 1 ABOVE NETTED $27.83.

Workings at the site

  • Type of workings Underground
    Length 111.25M

Comments on the workings information

  • 3 DRIFTS

Reference information

Bibliographic references

  • Deposit

    ANDERSON, A. L., 1930, GEOLOGY AND ORE DEPOSITS OF THE CLARK FORK DISTRICT, IDAHO: IDAHO BUREAU OF MINES AND GEOLOGY BULL. 12, 132 P.

  • Deposit

    SAVAGE, C. N., 1967, GEOLOGY AND MINERAL RESOURCES OF BONNER COUNTY: IDAHO BUREAU OF MINES AND GEOLOGY COUNTY REPT. 6, 131 P.

  • Deposit

    ANDERSON, A. L., 1947, LEAD - SILVER DEPOSITS OF THE CLARK FORK DISTRICT, BONNER COUNTY, IDAHO: USGS BULL. 944-B, 117 P.

  • Deposit

    1930 GEOLMAP IDAHO BUREAU OF MINES & GEOL. BULL. 12

  • Deposit

    1947 OTHER A. L. ANDERSON, BULL. 944-B

  • Deposit

    1967 GEOLMAP IDAHO BUREAU OF MINES & GEOL. CO. REPT. 6

  • Production

    ANDERSON, A. L., 1947, USGS BULL. 944-B.

General comments

Subject category Comment text
Deposit SEDIMENTARY ROCKS STRIKE N 30 DEG E AND DIP ABOUT 15 DEG SE BUT ARE MODIFIED BY DRAG ALONG FAULTS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1974 Miller, Pat J. U.S. Geological Survey

Beyond USGS

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

Maps centered on this site