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Little Pittsburg Mine

Past Producer in Shoshone county in Idaho, United States with commodities Lead, Zinc, Silver, Gold, 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. 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. Ownership information
  18. Reserves and resources
  19. Workings at the site
  20. Links to other databases
  21. Bibliographic references
  22. General comments
  23. Reporter information

Geologic information

Identification information

Deposit ID 10073435
MRDS ID W019515
Record type Site
Current site name Little Pittsburg Mine
Alternate or previous names Mascot Silver Lead
Related records 10241690

Geographic coordinates

Geographic coordinates: -116.19993, 47.48457 (WGS84)
Elevation 988
Relative position 4.5 MI SW OF KELLOGG

Site location context

Political divisions (FIPS codes)

Shoshone(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Masonia(quadrangle 1:24,000 scale)

Saint Maries(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 002E 22,27,28,21 Idaho

Comments on the location information

  • ON DENVER CREEK ABOUT 1.5 MI ABOVE JUNCTION WITH E. FK. PINE CREEK. 2000 FT. E OF NABOB MINE

Commodities

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

Comments on the commodity information

  • RATIO PB:ZN ABOUT 3:7 . RATIO PB:AG, 1 %: 0.5 - 0.6 OZ. A 2 - FT CUT RAN 6.2 OZ AG AND 13.5 % PB.

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Sphalerite Ore
Ankerite Gangue
Pyrite Gangue
Pyrrhotite Gangue
Siderite Gangue

Alteration

  • (Local) Gouge

Analytical data

Result ASSAYS FROM 21-FT. FACE: 8 - 10 % ZN, 5 % PB. ANOTHER ASSAY: 16 % ZN, 12 % PB, 22 % FE. CONCENTRATES ASSAY 60 % PB, 24 OZ. AG/TON. 4 FT. VEIN OF LOW-GRADE SILVER ORE ASSAYED 45.6 % PB, 17 OZ. AG/TON.

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate
    Rock unit name Prichard Formation-Slate, Quartzite
    Rock description Prichard Formation-Slate, Quartzite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite

Nearby scientific data

(1) -116.19993, 47.48457
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Broad Anticlinorial Fold, Axis Of Which Strikes Nw-Se
Type of structure Local
Structure description Fault (Striking N 42 Deg W, Dipping 60 Deg Sw) Displaces Vein 12 Ft E In Upper Tunnel.

Ore body information

  • General form LENSES, STRINGERS, MASSES OR BANDS
    Strike N 30 DEG W
    Dip 65 DEG SW
    Length 158.5M
    Width 9.14M

Controls for ore emplacement

  • Fault Fissure

Comments on the geologic information

  • SLATE STRIKES N 45 DEG W, DIPS 65 DEG SW

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1889
Discoverer G. A. Smith
Year of first production 1929

Mining district

District name Coeur D' Alene District

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner U.S. Antimony Corp., Intermtn. Mineral Engineers, Inc.
  • Type Owner
    Owner Mascot Silver Lead Mines, Inc.

Comments on the production information

  • ITEMS 8 , 9 , 10 ARE RECOVERED METALS FROM 111,665 TONS MILLED. MINE YIELDED OVER $6000000 IN PB-ZN ORE BEFORE BEING SHUT DOWN IN 1954

Reserves and resources

  • Type In-situ
    Estimate year 1944
    Measured 10000mt ore
    Indicated 18000mt ore
    Inferred 14000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 8.5 wt-pct Zinc Major 1944
    Lead Pb 3.5 wt-pct Lead Major 1944
  • Type In-situ
    Estimate year 1972
    Inferred 13000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 33.882 g/mt Silver Major 1972

Comments on the reserve resource information

  • PROBABLE 1972 RESERVES (H4) CONTAIN $1,117,139 ZN AND PB AND $79,020 AG.
  • DIAMOND DRILLING HELPED OUTLINE $1.2 MILLION WORTH ZN-PB-AG ORE

Workings at the site

  • Type of workings Underground
    Area 52.611HA
    Length 2752.34M
    Overall depth 152.4M

Comments on development

  • 4 DDH BY USBM. 150 - TON MILL. FIRST PROFITABLE MINING DONE IN 1942 . 12 CLAIMS, 2 MILLSITES, 5 OF WHICH ARE PATENTED, AND SURFACE RIGHTS TO THE DON NO. 2 CLAIM (LITTLE PITTSBURG MILLSITE).

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit IN THE PINE CREEK MINERAL BELT. GREATER VEIN WIDTHS USUALLY WITH CROSS FAULTS
Deposit WORK DONE FROM THE NABOB MINE WORKINGS

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-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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