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Gold Bug Mine

Past Producer in Beaverhead county in Montana, United States with commodities Gold, Silver, Copper, Lead, Bismuth, Tellurium
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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. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Production statistics
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10070482
MRDS ID W013432
Record type Site
Current site name Gold Bug Mine
Alternate or previous names Dakota Mine
Related records 10221157

Geographic coordinates

Geographic coordinates: -112.97589, 45.15934 (WGS84)
Elevation 1820

Site location context

Political divisions (FIPS codes)

Beaverhead(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bannack(quadrangle 1:24,000 scale)

Dillon(quadrangle 1:100,000 scale)

Dillon(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Beaverhead(hydrologic unit)

Missouri Headwaters(hydrologic accounting unit)

Missouri Headwaters(hydrologic subregion)

Missouri(hydrologic region)

Geographic areas

Country State County
United States Montana Beaverhead

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 008S 011W 05,08 Montana

Commodities

Commodity Importance
Gold Primary
Silver Primary
Copper Secondary
Lead Secondary
Bismuth Critical Tertiary
Tellurium Critical Tertiary

Materials information

Materials Type of material
Calcite Gangue
Epidote Gangue
Garnet Gangue
Quartz Gangue

Alteration

  • (Local) Garnetization, Oxidation

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Bannack Stock
    Rock description Bannack Stock
    Stratigraphic age (youngest) Mississippian
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Mississippian
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Madison
    Rock description Madison

Nearby scientific data

(1) -112.97589, 45.15934
ListMap

Economic information

Ore body information

  • General form IRREGULAR PIPES, SHOOTS
    Strike N 50 W
    Dip 25 N
    Width 4.57M

Controls for ore emplacement

  • Dike/Marble Contact, Outside Of The Garnet Zone

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1862
Year of first production 1862

Mining district

District name Bannack District

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Graves Estate, Bannack
    First year 1931

Production statistics

  • Year 1868
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^0.9 Oz. Au/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 25g/mt
  • Year 1941
    Period 1922 - 1941
    Material CU
    Accuracy Accurate
    Description Cp_Grade: ^0.7 %
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper 1wt-pct
  • Year 1941
    Period 1922 - 1941
    Material AG
    Accuracy Accurate
    Description Cp_Grade: ^2 Oz/St
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Silver Silver 56g/mt
  • Year 1941
    Period 1922 - 1941
    Material AU
    Accuracy Accurate
    Description Cp_Grade: ^0.9 Oz/St
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 25g/mt

Comments on the production information

  • PRODUCTION INCLUDED 7,437 LB. PB AT 0.2% FROM 2,353 ST ORE

Workings at the site

  • Type of workings Underground
    Length 200M
    Overall depth 100M

Comments on the workings information

  • SEVERAL SHALLOW SHAFTS AND ADITS. THE EARLY DAKOTA NO. 6 WAS BEST DEVELOPED, WITH A 100 M MAIN SHAFT, 112 M ADIT, AND WINZE SUNK 40 M FROM THE ADIT.

Comments on development

  • 6-STAMP MILL ERECTED IN 1863 NEAR THE TWELVE DAKOTA CLAIMS, NOW COVERED BY GOLD BUG AND BLUE GRASS MINES

Reference information

Bibliographic references

  • Deposit

    MBMG BULL 85.

  • Deposit

    MBMG BULL 6.

  • Deposit

    USGS BULL 574, P. 73.

  • Deposit

    1914 COMPILE WINCHELL,A.N., U.S.G.S. BULL. 574

  • Deposit

    1931 COMPILE M.B.M.G. BULL. 6

  • Deposit

    1972 RECON M.B.M.G. BULL. 85

  • Production

    M.B.M.G. BULL. 85, U.S.G.S. BULL. 574.

General comments

Subject category Comment text
Deposit THE GOLD BUG CLAIM OVERLIES THE DAKOTA CLAIM ON WHICH WAS STARTED THE FIRST QUARTZ LODE MINE IN MONTANA. ; INFO.SRC : 1 PUB LIT
Deposit REPLACEMENT VEINS AVERAGE 2 OR 3 FEET IN WIDTH, BUT LOCALLY ATTAIN 15 FOOT. VEINS ARE NOT CONTINUOUS ALONG CONTACT.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1976 Mlynarczyk, Meg S.; Krohn, D. U.S. Geological Survey
Updater 01-JUL-1980 Loen, Jeffrey S. (Pearson, Robert C.) 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