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Jay Gould Mine

Past Producer in Lewis and Clark county in Montana, United States with commodities Gold, Silver, Copper, Iron
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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. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Land status
  18. Ownership information
  19. Production statistics
  20. Reserves and resources
  21. Workings at the site
  22. Links to other databases
  23. Bibliographic references
  24. General comments
  25. Reporter information

Geologic information

Identification information

Deposit ID 10071377
MRDS ID W014721
Record type Site
Current site name Jay Gould Mine
Alternate or previous names Stemple Mine

Geographic coordinates

Point of reference Geographic coordinates: Elevation UTM Precision Relative position Point location
-112.45194, 46.87972 (WGS84)
(click for info)
-112.45951, 46.88184 (WGS84) 1920 250 ABOUT 28 MILES NW OF HELENA, MONTANA

Site location context

Political divisions (FIPS codes)

Lewis and Clark(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Stemple Pass(quadrangle 1:24,000 scale)

Elliston(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)

Federal lands

Helena-Lewis and Clark National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Montana Lewis and Clark

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 013N 007W 14,15,16,10 Montana

Comments on the location information

  • STEMPLE MINE IS IN SECTION 10. ; INFO FROM LAND.ST :(1968)

Commodities

Commodity Importance
Gold Primary
Silver Primary
Copper Secondary
Iron Secondary

Materials information

Materials Type of material
Argentite Ore
Chalcopyrite Ore
Electrum Ore
Gold Ore
Malachite Ore
Calcite Gangue
Quartz Gangue

Alteration

  • (Local) Sericitization

Analytical data

Result AU FINENESS 0.506 TO 0.536 LARGE AMOUNT OF AG ALLOY. FLOTATION CONCENTRATION: 180 OZ/TON AG, 2.5 OZ/TON AU, 2% FE, 0.2% MN.

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 Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Rock unit name Granite Peak Stock
    Rock description Granite Peak Stock
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Argillite
    Rock unit name Empire Formation;Spokane Formation
    Rock description Empire Formationt;Spokane Formationt

Nearby scientific data

(1) -112.45194, 46.87972
ListMap
(2) -112.45951, 46.88184
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Boulder Batholith
Type of structure Local
Structure description Granite Peak Stock

Ore body information

  • Strike N 70 W
    Dip 80 N
    Thickness 4.27M

Controls for ore emplacement

  • Mineralization Seems Related To Intrusion Of Granite Peak Stock

Comments on the geologic information

  • 350 FT E OF THE ADIT THE VEIN IS CROSSED BY A FAULT THAT TRENDS N 20 E AND STANDS VERTICAL.

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant Yes
Discovery year 1884

Mining district

District name Gould-Stemple District

Land status

Ownership category National Forest

Ownership information

  • Type Owner-Operator
    Owner Knopf, V. C.
    Home office 1621 Cannon St, Helena, MT 59601
  • Type Owner
    Owner Gold King Consolidated Inc.
    Interest 30
    Home office 2112 Hurd Drivd, Irving TX 75038
    Year 1987

Production statistics

  • Year 1942
    Period 1884-1942
    Material ore
    Ore mined 544000mt
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major AG Silver Silver 18040018.98g
    Major AU Gold Gold 5598626.58g

Comments on the production information

  • PRODUCTION ESTIMATED AT $2,500,000 OF WHICH 95% WAS GOLD AND ABOUT 5% SILVER. MOST OF THIS PRODUCTION WAS PRIOR TO 1915. PRODUCTION YEARS 1884 - 1890 , 1903 - 1942.

Reserves and resources

  • Type Dump
    Estimate year 1987
    Inferred 200000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold 25 g/mt Gold Major 1987

Workings at the site

  • Type of workings Underground
    Length 3657.6M
    Overall depth 106.68M

Comments on the workings information

  • AN ADIT AT THE S BASE OF THE RIDGE. IT IS DRIVEN NW AND INTERSECTS THE VEIN 1000 FT IN. DRIFTS EXTEND 2000 FT W AND 800 FT E. 2 SHAFTS AT SURFACE (INACCESSIBLE). PITS, DRAIN TUNNEL.

Reference information

Bibliographic references

  • Deposit

    USGS BULL 842, P. 80-4.

  • Deposit

    MBMG BULL 100, P. 14.

  • Production

    PARDEE & SCHRADER, 1933, U.S.G.S. BULL. 842.; MBMG MEM 20, USBM MINERALS YEARBOOKS

General comments

Subject category Comment text
Deposit VEIN OUTCROPS ON THE N RIDGE IN A WIDE SHALLOW DEPRESSION THAT IS DRAINED BY FOOLHEN CREEK. THE VEIN HAS A BANDED STRUCTURE DUE TO ALTERNATION OF LAYERS OF DIFFERENT COMPOSITION AND TEXTURE, THE LAYERS ARE PARALLEL TO THE WALLS. IT HAS A CONSTANT STRIKE FOR 1500 FT AND SEVERAL BRANCHES SPLIT FROM IT.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-76 Mlynarczyk, Meg S. U.S. Geological Survey
Updater 01-DEC-81 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.

Maps centered on this site