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Bertha Mine

Past Producer in Jefferson county in Montana, United States with commodities Copper, Silver, Lead, Gold, Zinc, Bismuth, Antimony
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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. Economic information about the deposit and operations
  14. Mining district
  15. Ownership information
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. Reporter information

Geologic information

Identification information

Deposit ID 10101934
MRDS ID DB02151
Record type Site
Current site name Bertha Mine
Alternate or previous names Bertha Group

Geographic coordinates

Geographic coordinates: -112.0881, 46.38018 (WGS84)
Elevation 1452
Relative position 2.0KM W OF CORBON

Site location context

Political divisions (FIPS codes)

Jefferson(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Jefferson City(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 004W 02,03 SW (02); SE (03) Montana

Comments on the location information

  • NE SLOPE OF ALTA MT.

Commodities

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

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Gold Ore
Tetrahedrite Ore
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Sericitization, Oxidation, Some Pyritization

Analytical data

Result 1-5%/TON CU
Result 1-10 OZ/TON AG
Result $0.20/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);Elkhorn Mountain Volcanics
    Rock description Butte Quartz Monzonite (Boulder Batholith);Elkhorn Mountain Volcanics
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite

Nearby scientific data

(1) -112.0881, 46.38018
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Boulder Batholith

Ore body information

  • General form IRREGULAR
    Strike N 40 E
    Dip 80 S
    Width 3.05M
    Depth to top 0M

Comments on the geologic information

  • VEIN OXIDIZED TO DEPTHS OF 40 TO 100 FEET . MUCH POSTMINERAL MOVEMENT HAS OCCURED.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of last production 1917

Mining district

District name Colorado (Corbin-Wickes) District

Ownership information

  • Type Owner
    Owner Glenore Mines, Inc.

Comments on the production information

  • PRODUCED CONTINUOUSLY FROM 1906-1918 EXCEPT 1910.

Workings at the site

  • Type of workings Underground
    Length 4267.2M
    Overall depth 396.24M

Comments on the workings information

  • TWO SHAFTS, FIVE LEVELS, CROSSCUTS. SHAFT COLLAR IS 300FT BELOW SURFACE DISCOVERY OF THE MAIN VEIN. 1911 CONSTRUCTION WAS STARTED ON A 100-TON FLOATATION PLANT TO SUPPLEMENT A 200-TON GRAVITY CONCENTRATOR. 1917 FIRE DISTROYED THE CONCENTRATOR.

Comments on development

  • 11 PATENTED CLAIMS: BERTHA, BERTHA 2, DAPHNE 2, C&M, C&B, FARVIEW, JACK RABBIT, CORBIN, D&E, HELENA, BOSTON FRACTION, JEFFERS. ; ECON.COM: MILL OPERATED AT MINE DURING 1907-1918 PERIOD

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1979 Elliott, James E. U.S. Geological Survey
Updater 01-JUN-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.

External references

Maps centered on this site