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Golconda Mine

Producer in Jefferson county in Montana, United States with commodities Gold, Silver, Lead, Copper, Zinc, Arsenic
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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. Economic information about the deposit and operations
  13. Mining district
  14. Ownership information
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10108501
MRDS ID DC10876
Record type Site
Current site name Golconda Mine
Alternate or previous names Golden Assets

Geographic coordinates

Geographic coordinates: -112.00226, 46.33184 (WGS84)

Site location context

Political divisions (FIPS codes)

Jefferson(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Wickes(quadrangle 1:24,000 scale)

Butte North(quadrangle 1:100,000 scale)

Butte(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Missouri(hydrologic unit)

Upper Missouri(hydrologic accounting unit)

Missouri-Marias(hydrologic subregion)

Missouri(hydrologic region)

Geographic areas

Country State County
United States Montana Jefferson

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 007N 003W 20,29 Montana

Comments on the location information

  • LAT. LONG. ARE ON MAIN ADIT IN SEC. 29.

Commodities

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

Materials information

Materials Type of material
Galena Ore
Gold Ore
Sphalerite Ore
Limonite Gangue
Quartz Gangue

Analytical data

Result 2.5 OZ/TON AU

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Butte Quartz Monzonite (Boulder Batholith)
    Rock description Butte Quartz Monzonite (Boulder Batholith)
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite

Nearby scientific data

(1) -112.00226, 46.33184
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Boulder Batholith

Ore body information

  • General form RETICULATED VEINLETS
    Strike N60W
    Dip 35N

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Alahambra (Golconda) District

Ownership information

  • Type Owner-Operator
    Owner Placer Amex, Inc. (Don Jenkins)
    Home office 2500 One California Bldg., San Francisco, Ca. 94111

Comments on the production information

  • PRODUCTION HAS BEEN RECORDED FOR THE GOLCONDA MINE IN THE COLORADO DISTRICT IN 1937 AND THE CATARACT DISTRICT IN 1938 & 1939. PRODUCTION AS HIGH AS $100000.

Comments on the workings information

  • 3 ADITS, DRIFTS; 1949 OPEN CUTS WERE PUT IN BY THE BUCKEYE MIN. CO. IT PRODUCED 75 TON/DAY AND WAS TAKEN TO A MILL WHERE THE CYANIDE PROCESS WAS USED. MIDDLE AND UPPER ADITS WERE OPEN IN 1954.

Comments on development

  • 10 PATENTED CLAIMS: GOLD COIN 1, 2, 3, 4, 5; GOLD COIN 7; GOLD COIN PLACER; GOLD COIN FRAC. NO. 6; BLUE JACKET, YELLOW JACKET; YELLOW JACKET MILL SITE;

Reference information

Bibliographic references

  • Deposit

    MBMG BULL 16, P. 67

  • Deposit

    MBMG BULL 115, P. 6

  • Deposit

    USGS PP 428, P. 81, PL. 1.

  • Deposit

    MBMG MEM 31, P. 39-40.

  • Production

    MBMG BULL 16, P. 67.; USGS PP 428, P. 81.

General comments

Subject category Comment text
Deposit THE ORE IS IN A MINERALIZED STOCKWORK IN GRANITE. MINABLE-GRADE AU ORE RANGE UP TO 35 FT IN WIDTH TO 150 FT IN LENGTH.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1974 Unknown U.S. Geological Survey
Updater 01-MAY-1981 Wise, Kristine K. (Elliott, James E.) U.S. Geological Survey

Beyond USGS

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

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