Pittsburg-Idaho Mine

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

Geologic information

Identification information

Deposit ID 10071994
MRDS ID W015796
Record type Site
Current site name Pittsburg-Idaho Mine
Alternate or previous names Silver Dollar, 16 To 1, Gilmore, Neversweat

Geographic coordinates

Geographic coordinates: -113.2847, 44.4522 (WGS84)
Elevation 2499
Relative position 1 MI WSW OF GILMORE

Site location context

Political divisions (FIPS codes)

Lemhi(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Gilmore(quadrangle 1:24,000 scale)

Borah Peak(quadrangle 1:100,000 scale)

Dubois(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lemhi(hydrologic unit)

Salmon(hydrologic accounting unit)

Lower Snake(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 Lemhi

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 013N 027E 18 Idaho

Comments on the location information

  • W OF GILMORE; LOCATION IS AN APPROXIMATE PLOT

Commodities

Commodity Importance
Silver Primary
Lead Primary
Zinc Critical Tertiary
Gold Tertiary

Materials information

Materials Type of material
Galena Ore
Smithsonite Ore
Sphalerite Ore
Calamine Gangue
Hematite Gangue
Iron Gangue
Limonite Gangue
Pyrite Gangue

Alteration

  • (Local) Oxidation

Analytical data

Result 37% PB, 15.25 OZ AG/TON ORE AVG. ANOTHER ORE BODY HAD (IN 1907) 35% PB, 20 OZ AG/TON, $0.50 AU/TO

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Dikes-Quartz Diorite
    Rock description Dikes-Quartz Diorite
    Stratigraphic age (youngest) Late Devonian
    Stratigraphic age (youngest) Late Devonian
    Stratigraphic age (youngest) Paleocene
    Stratigraphic age (youngest) Paleocene
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Jefferson Limestone
    Rock description Jefferson Limestone

Nearby scientific data

(1) -113.2847, 44.4522

Economic information

Geologic structures

Type of structure Local
Structure description Slickensides
Type of structure Regional
Structure description Folding

Ore body information

  • General form TABULAR, IRREGULAR
    Strike N 15 DEG E
    Dip 70 DEG W
    Length 121.92M
    Width 9.14M
    Depth to top 60.96M
    Depth to bottom 213.36M

Controls for ore emplacement

  • Fissures

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1904

Mining district

District name Texas District

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner Pittsburg Idaho Co., Ltd.
    First year 1913

Production statistics

  • Year 1904
    Material ORE
    Accuracy Estimate
    Description Ap_Grade: ^Ave 45 % Pb, 22 Oz Ag/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Lead Lead 45wt-pct
    Ore Silver Silver 621g/mt
  • Year 1906
    Material ORE
    Accuracy Estimate
    Description Ap_Grade: ^Ave 60 % Pb, 30 Oz Ag/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Lead Lead 60wt-pct
    Ore Silver Silver 847g/mt

Comments on the production information

  • ITEM 11 PRODUCTION INTERMITTENT; ITEM 10 INCLUDES ABOUT 2000 TONS ORE/MONTH IN 1912

Reserves and resources

  • Type In-situ
    Estimate year 1906
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 423.534 g/mt Silver Major 1906
    Lead Pb 30 wt-pct Lead Major 1906

Comments on the reserve resource information

  • VALUE EST. AT $300,000 (ITEM 1)

Workings at the site

  • Type of workings Underground
    Length 762M
    Overall depth 198.12M

Reference information

Bibliographic references

  • Deposit

    UMPLEBY, J. B., 1913, GEOLOGY AND ORE DEPOSITS OF LEMHI COUNTY, IDAHO: USGS BULL 528, 182 P.

  • Deposit

    NICHOLS, R., 1913, LEAD-SILVER MINES OF GILMORE, IDAHO: AM. INST. MINING ENGINEERS TRANS., V. 46, P. 937-939.

  • Deposit

    KOSCHMANN, A. H., AND BERGENDAHL, M. H., 1968, PRINCIPAL GOLD-PRODUCING DISTRICTS OF THE UNITED STATES: USGS PROF. PAPER 610, P. 120-141

  • Deposit

    BELL, R. N., 1905, REPORT OF THE MINING DISTRICTS OF IDAHO FOR THE YEAR 1904

  • Deposit

    5) BELL, R. N., 1906, SEVENTH ANNUAL REPORT OF THE MINING INDUSTRY OF IDAHO FOR THE YEAR 1905.

  • Deposit

    6) BELL, R. N., 1907, EIGHTH ANNUAL REPORT OF THE MINING INDUSTRY OF IDAHO FOR THE YEAR 1906

  • Deposit

    7) BELL, R. N., 1908, NINTH ANNUAL REPORT OF THE MINING INDUSTRY OF IDAHO FOR THE YEAR 1907

  • Deposit

    8) MOORE, F. C., 1911, TWELFTH ANNUAL REPORT OF THE MINING INDUSTRY OF IDAHO FOR THE YEAR 1910

  • Deposit

    9) BELL, R. N., 1912, THIRTEENTH ANNUAL REPORT OF THE MINING INDUSTRY OF IDAHO FOR THE YEAR 1911

  • Deposit

    1913 RECON UMPLEBY, J. B., BULL 528

  • Production

    ITEMS 8, 9, UMPLEBY, J. B., 1913, USGS BULL. 528; ITEM 10, NICHOLS, R., 1913, AM. INST. MINING ENGINEERS TRANS., V. 46, P. 937; ITEM 11, KOSCHMANN, A.H., AND BERGENDAHL, M. H., 1968, USGS PROF. PAPER 610; ITEM 1, BELL, R. N., 1905, MINING INDUSTRY REPORT FOR 1904; ITEM 2, BELL, R.N., 1906, MINING INDUSTRY REPORT FOR 1905; ITEM 3, BELL, R. N., 1907, MINING INDUSTRY REPORT FOR 1906; ITEMS 4, 5, MOORE, F. C., 1911, MINING INDUSTRY REPORT FOR 1910; ITEM 6, BELL, R. N., 1912, MINING INDUSTRY REPORT FOR 1911

General comments

Subject category Comment text
Deposit 3 VEINS, DIPS ARE WESTWARD AND BETWEEN 45 AND 90 DEG

Reporter information

Type Date Name Affiliation Comment
Reporter 1976-06-01 Siefken, Robert R. (Miller, Pat) U.S. Geological Survey

Beyond USGS

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