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Snowstorm Mine

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

Geologic information

Identification information

Deposit ID 10071366
MRDS ID W014707
Record type Site
Current site name Snowstorm Mine
Alternate or previous names B and B Mine
Related records 10173365

Geographic coordinates

Geographic coordinates: -115.99076, 48.43293 (WGS84)
Elevation 779
Relative position ABOUT 5 MILES SW OF TROY, MONTANA

Site location context

Political divisions (FIPS codes)

Lincoln(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Troy(quadrangle 1:24,000 scale)

Libby(quadrangle 1:100,000 scale)

Kalispell(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Kootenai(hydrologic unit)

Kootenai(hydrologic accounting unit)

Kootenai-Pend Oreille-Spokane(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Kootenai 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 Lincoln

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 031N 034W 19,20 Montana

Commodities

Commodity Importance
Silver Primary
Lead Primary
Zinc Critical Primary
Gold Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Pyrite Ore
Pyrrhotite Ore
Sphalerite Ore
Biotite Gangue
Calcite Gangue
Chlorite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Snowstorm Dike, Metadiorite;Dry Creek Stock, Quartz Monzonite
    Rock description Snowstorm Dike, Metadiorite;Dry Creek Stock, Quartz Monzonite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Prichard Formation, Sericitic Quartzite
    Rock description Prichard Formation, Sericitic Quartzite

Nearby scientific data

(1) -115.99076, 48.43293
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Spar Lake Syncline, Leonia Fault
Type of structure Local
Structure description Leonia Fault East Of Property

Ore body information

  • Strike N 25 W
    Dip 75 - 80 SW
    Width 3M

Controls for ore emplacement

  • Snowstorm Dike, Spar Lake Syncline, May Be Related To Dry Creek Stock

Comments on the geologic information

  • VEIN SYSTEM IN MAFIC DIKE WHICH IS ENCLOSED BY PRICHARD FORMATION. ORO VEIN TO THE NORTHWEST BELIEVED TO BE IN EXTENSION OF SNOWSTORM DIKE

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1925

Mining district

District name Troy District

Ownership information

  • Type Operator
    Owner Trojan Silver-Lead Mining Co.,
    Home office C/O President R. C. Ockey S. 2011 Julia Ct. Spokane, Wa 99203
  • Type Owner
    Owner Big Eight, Inc.

Production statistics

  • Year 1927
    Period 1912 - 1927
    Material PB
    Accuracy Estimate
    Description Cp_Grade: ^About 4 %
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Lead Lead 4wt-pct
  • Year 1927
    Period 1912 - 1927
    Material CU
    Accuracy Estimate
    Description Cp_Grade: ^About 0.01 %
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 0wt-pct
  • Year 1927
    Period 1912 - 1927
    Material AG
    Accuracy Estimate
    Description Cp_Grade: ^About 2 Toz/St
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Silver Silver 56g/mt

Comments on the production information

  • PRODUCTION ESTIMATED USING GIBSON'S ESTIMATE OF TOTAL VALUE, AND COUNTY PRODUCTION SHOWN BY JOHNS

Workings at the site

  • Type of workings Underground
    Length 3000M
    Overall depth 300M

Comments on the workings information

  • DEPOSIT DEVELOPED BY SEVERAL ADITS AT DIFFERENT ALTITUDES AND TWO SHAFTS, SUNK TO DEPTHS OF 125 AND 600 FT. ADITS 6 AND 7 WERE 1900 AND 2350 FT IN LENGTH RESPECTIVELY. LOWEST TUNNEL SERVED AS MAIN HAULAGEWAY.

Reference information

Bibliographic references

  • Deposit

    JOHNS, W. M., 1970, GEOLOGY & MINERAL DEPOSITS - LINCOLN & FLATEHAD CO, MT BUREAU MINES & GEOLOGY BULL. 79.

  • Deposit

    GIBSON, R., 1948, GEOLOGY AND ORE DEPOSITS OF THE LIBBY QUAD., U.S. GEOLOGICAL SURVEY BULL. 956

  • Production

    GIBSON, 1948, U.S.G.S. BULL. 956; JOHNS, 1970, MBMG BULL. 79

General comments

Subject category Comment text
Deposit REPORTEDLY LARGEST PRODUCER OF THE LIBBY QUADRANGLE
Deposit Discovery Year: EARLY 1900'S

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1976 Mlynarczyk, Meg S. 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