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Chartam

Plant in Broadwater county in Montana, United States with commodities Gold, Silver, Lead, Copper, Zinc
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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. Mineral occurrence model information
  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. Mineral rights holdings
  15. Land status
  16. Ownership information
  17. Production statistics
  18. Reserves and resources
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10246088
MAS/MILS ID 0300070327
Record type Site
Current site name Chartam
Alternate or previous names Char Tam

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -111.66837, 46.4443 (WGS84)
Elevation 1463
Location accuracy 500(meters)

Site location context

Political divisions (FIPS codes)

Broadwater(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Winston(quadrangle 1:24,000 scale)

Townsend(quadrangle 1:100,000 scale)

White Sulphur Springs(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Missouri(hydrologic unit)

Upper Missouri(hydrologic accounting unit)

Missouri-Marias(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management MT)

Bureau of Land Management MT BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Montana Broadwater

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 008 N 001 W 13 SE Montana

Comments on the location information

  • LOCATED 3 MILES SOUTH OF WINSTON, BROADWATER COUNTY, MONTANA.

Commodities

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

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Pyrite Ore
Sphalerite Ore

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock type qualifier QUARTZ MONZONITE
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock type qualifier ANDESITE
    Rock unit name ELKHORN MOUNTAINS VOLCANICS

Nearby scientific data

Ore Body (1) Elkhorn Mountains Volcanics
ListMap

Economic information

Geologic structures

Type of structure Local
Structure name EAST- AND NORTHEAST-STRIKING FAULTS

Ore body information

  • Field Value
    MAS Matrix # 1
    Date of Last Modification 980417

Economic information about the deposit and operations

Operation type Surface
Development status Plant
Commodity type Metallic
Significant Yes
Mining method Open Pit
Plant type Leach
Milling method Heap Leach-Carbon Column-Merrill-Crowe

Comments on exploration

  • 1867 - EAST PACIFIC VEIN DISCOVERED.

    1900 - MOST OF THE MAJOR MINES OF THE DISTRICT OPENED.

    1918 - ACTIVITY FELL OFF.

    1918-1923 - NO RECORD OF PRODUCTION.

    1955 - PRODUCTION FELL OFF AGAIN.

    1981 - 1984 - DON HOLMES OWNER/OPERATOR.

    1984 - WESTERN ENERGY COMPANY BEGINS EXPLORATION PROGRAM

Mineral rights holdings

Type of mineral rights Patented
Type of mineral rights Located Claim

Land status

Ownership category Mixed

Ownership information

  • Type Owner
    Owner Ecu Gold Mining Co., Inc. ("Ecudor")
    Interest 100
    Home office Canada
    Year 1997
  • Type Owner
    Owner Valdus Operations Inc.
    Year 1995
  • Type Unknown
    Owner Macquire Metals (Option To Purchase From Canyon Res.)
    Year 1994
    First year 1994
  • Type Owner
    Owner Canyon Resources Corp. (Jv To Phelps Dodge)
    ID 2401604
    Interest 100
    Year 1994
    Last year 1994
  • Type Owner
    Owner Addwest Gold, Inc. (Jv To Phelps Dodge)
    Interest 100
    Year 1998
    First year 1989
  • Type Owner-Operator
    Owner Western Energy Corp.
    Interest 100
    Home office Montana
    Year 1988
    First year 1988
    Last year 1989
  • Type Owner-Operator
    Owner Anaconda Co.
    Interest 100
    Home office Montana
    Year 1988
    Last year 1988

Comments on the ownership information

  • CONTACTED WESTERN ENERGY ON 2/5/87. THEY ARE OWNED BY ENTEC, A SUBSIDIARY OF MONTANA POWER. MONTANA POWER SOLD COMPANY & PROPERTY TO VALDUS OPERATIONS, SEPTEMBER, 1994. AN ECU GOLD MINING COMPANY INC. ("ECUDOR"), JANUARY 16, 1997 PRESS RELEASE STATES THAT IT OWNS 100% OF THE PROPERTY.

Production statistics

  • Year 1951
    Period 1901-1951
    Material ore
    Ore mined 49000mt
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major AU Gold Gold 383319.29g
    Major ZN Zinc Zinc 476.27mt
    Trace AG Silver Silver 1401429.54g
    Major PB Lead Lead 305796.1mt
    Major CU Copper Copper 7973.24mt

Comments on the production information

  • NO REPORTED PRODUCTION/CAPACITY.
  • TOTAL PRODUCTION FROM THE DISTRICT >$4,000,000 FROM 150,000 TONS OF ORE (EARLL, 1964)

Reserves and resources

  • Type In-situ
    Estimate year 1997
    Total resources 5719000mt ore
    Remarks USGS OFR 2004-1038
    Commodity Subtype Grade units Group Importance Year
    Silver 7.06 g/mt Silver Tertiary 1997
    Gold 2.7 g/mt Gold Primary 1997
  • Type In-situ
    Estimate year 1987
    Demonstrated 5443200mt ore
    Total resources 5443200mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 3.446 g/mt Silver Trace 1987
    Gold Au 1.413 g/mt Gold Major 1987
  • Type In-situ
    Estimate year 1994
    Total resources 8100000mt ore
    Commodity Subtype Grade units Group Importance Year
    Silver Ag 3.45 g/mt Silver Trace 1994
    Gold Au 0.96 g/mt Gold Major 1994

Comments on the reserve resource information

  • PUBLISHED DEMONSTRATED RESOURCE (PAY DIRT; APRIL, 1987).

Reference information

Bibliographic references

  • Reserve-Resource

    APRIL PAYDIRT, 1987.

  • Geology

    PARDEE, J.T., AND SCHRADER, F.C., 1933, METALLIFEROUS DEPOSITS OF THE GREATER HELENA MINING REGION, MONTANA: USGS BULLETIN 842, P. 211-227

  • Deposit

    MSHA REPORT, MAY 1983

  • Geology

    EARLL, F.N., 1964, ECONOMIC GEOLOGY AND GEOCHEMICAL STUDY OF WINSTON MINING DISTRICT, BROADWATER COUNTY, MONTANA: MBMG BULLETIN 41, 56 P.

  • Deposit

    RANDOL GOLD DIRECTORY, 1988.

  • Geology

    REED, G.C., 1951, MINES AND MINERAL DEPOSITS (EXCEPT FUELS), BROADWATER COUNTY, MONTANA: U.S. BUREAU OF MINES INFORMATION CIRCULAR 7592, 58 P

  • Deposit

    ECU GOLD MINING COMPANY INC. ("ECUDOR"), JANUARY, 1997

  • Geology

    CORRY, A., 1933, SOME GOLD DEPOSITS OF BROADWATER, BEAVERHEAD, PHILLIPS, AND FERGUS COUNTIES: MBMG MEMOIR 10, 41

  • Deposit

    PRESS RELEASE, "CHARTAM - MONTANA, ECUDOR OBTAINS GRADES OF 12 & 21 G/T GOLD", 1/16/97, P1.

  • Geology

    LEPPER, M.R., WEEKS, R., AND RUPPEL, E.T., 1957, GEOLOGY OF THE SOUTHERN ELKHORN MOUNTAINS, JEFFERSON AND BROADWATER COUNTIES, MONTANA: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 292, 82 P.

General comments

Subject category Comment text
Deposit WAS SUPPOSEDLY UNDER DEVELOPMENT IN MID-1987. NOT LISTED IN SURVEY AS PRODUCING IN 1989. NO DATA AVAILABLE AS OF JUNE 1997, NOT LISTED IN RANDOL 1996/97 NO OWNERSHIP RECORDS LISTED IN AMERICAN MINES HANDBOOKS, 93, 96 OR 1997.
Deposit TWO TYPES OF VEINS: 1) FLAT VEINS (0 TO 30 DEG) AND GENERALLY STRIKE NORTHEAST, CONTAIN QUARTZ-PYRITE WITH MINOR BASE METALS, ARE FISSURE CONTROLLED, AND 2) STEEPLY DIPPING TO VERTICAL VEINS, STRIKE APPROXIMATELY EAST-WEST, QUARTZ-PYRITE BUT WITH GALENA, SPHALERITE AND SOME CHALCOPYRITE. (EARLL, 1964)

MINERALIZATION DERIVED FROM INTRUSIVES BUT OCCUR IN BOTH VOLCANICS AND INTRUSIVES (EARLL, 1964)

Reporter information

Type Date Name Affiliation Comment
Reporter 17-APR-98 Buckingham, David A. U.S. Bureau of Mines

Beyond USGS

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

Current status (per MSHA)

StatusAbandoned since 05/09/1989
MSHA mine ID2401604
Mine name (MSHA)Chartam
Current operatorAddwest Gold Inc
Current controller (parent)Addington Larry
Mine typeSurface (Metal / non-metal)

MSHA cross-reference per the original MRDS record. Mine status and operator reflect MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date. See the Mine Data Retrieval System for current status.

Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.

Operator history (post-MRDS)

MRDS records operators as of each record's last update (≤ 2019). Some of the operators listed here have since changed hands or dissolved:

  • Anaconda Co. — dissolved ~1977
    Acquired by Atlantic Richfield (ARCO) in 1977 and shut down most operations in the 1980s. Mineral assets were sold off piecemeal; some are now in Glencore via intermediate owners.

Curated by qvyshift.com from publicly-reported M&A activity (SEC filings, press releases, USGS Mineral Yearbooks). Not authoritative — verify against primary sources before relying on it. The MSHA panel above is the current authoritative source for actively-permitted mines.

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