Snowshoe

Past Producer in Lincoln county in Montana, United States with commodities Gold, Lead, Silver, Zinc
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. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Mineral rights holdings
  13. Land status
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10294634
MRDS ID W014727
MAS/MILS ID 0300530007
Record type Site
Current site name Snowshoe
Alternate or previous names Howard
Related records 10071382

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -115.64573, 48.20487 (WGS84)
Elevation 1396
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

Lincoln(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Snowshoe Peak(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 028 N 032 W 11 SESENE Montana

Commodities

Commodity Importance
Gold Tertiary
Lead Tertiary
Silver Tertiary
Zinc Critical Tertiary

Materials information

Materials Type of material
Anglesite Unknown
Cerussite Unknown
Chalcopyrite Unknown
Galena Unknown
Pyrite Unknown
Quartz Unknown
Sphalerite Unknown
Tetrahedrite Unknown

Nearby scientific data

Main Entrance (1) -115.64573, 48.20487

Economic information

Ore body information

  • Strike S10W
    Dip 80W
    Thickness 122M
    Length 300M
    Width 2M
    Depth to top 6M
    Field Value
    MAS Matrix # 1
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 TABULAR
    Primary mode of Origin UNKNOWN
    Primary Ore Control FAULTING
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Strike And Dip S10W:80W
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 6
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 811230
  • Area 37HA
    Field Value
    Total Surface Area (HA) 37
    Date of Last Modification 910418

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Libby District

Mineral rights holdings

Type of mineral rights Patented

Land status

Ownership category National Forest

Comments on the reserve resource information

  • GRADES IN MATRIX 1 FROM ASSAY OF GRAB FROM DUMP GRADES IN MATRICES 2 AND 3 FROM 705 TONNAGES IN MATRIX 1 ESTIMATED BYINVESTIGATOR TONNAGES IN MATRICES 2 AND 3 FROM 705 RECORDS 151,251,351 AND 120,220,320 SUPPORTED BY RPTS IN BAC BENEFIC.& TRANS. ASSUMES MILL ON PROPERTY

Workings at the site

  • Type of workings Underground
    Overall depth 300M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method HORIZ CUT & FILL W/WASTE ROCK 10-60
    Hardness of Rock SOFT NONPLASTIC FISSURED MODERATE WATER
    Rock Characteristics MULTIPLE SYSTEMS OF WEAKNESS PLANES
    Rock Support Chars. UNSUPPORTING NO FLOW
    Mine Support Chars. TIMBER W/LAGGING CONCRETE-UNREINFOR
    Number of Shafts 1
    Avg. Length of Adits (m) 300
    Number of Adits 1
    1st Condition of Workings CAVED AT PORTAL
    2nd Condition of Workings PLUGGED
    Capacity 228
    Capacity Units MT ORE/DAY
    Unit Production Cost 28
    Units of Production $/MT ORE
    Operating Days per Year 284
    Operating Shifts per Day 3
    Year of Information 1977
  • Type of workings Underground
    Overall depth 300M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 2
    Status of Mining Method PROPOSED
    Mining Method HORIZ CUT & FILL W/WASTE ROCK 10-60
    Hardness of Rock SOFT NONPLASTIC FISSURED MODERATE WATER
    Rock Characteristics MULTIPLE SYSTEMS OF WEAKNESS PLANES
    Rock Support Chars. UNSUPPORTING NO FLOW
    Mine Support Chars. TIMBER W/LAGGING CONCRETE-UNREINFOR
    Number of Shafts 1
    Avg. Length of Adits (m) 300
    Number of Adits 1
    1st Condition of Workings CAVED AT PORTAL
    2nd Condition of Workings PLUGGED
    Capacity 228
    Capacity Units MT ORE/DAY
    Unit Production Cost 28
    Units of Production $/MT ORE
    Operating Days per Year 284
    Operating Shifts per Day 3
    Year of Information 1977
  • Type of workings Underground
    Overall depth 300M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 3
    Status of Mining Method PROPOSED
    Mining Method HORIZ CUT & FILL W/WASTE ROCK 10-60
    Hardness of Rock SOFT NONPLASTIC FISSURED MODERATE WATER
    Rock Characteristics MULTIPLE SYSTEMS OF WEAKNESS PLANES
    Rock Support Chars. UNSUPPORTING NO FLOW
    Mine Support Chars. TIMBER W/LAGGING CONCRETE-UNREINFOR
    Number of Shafts 1
    Avg. Length of Adits (m) 300
    Number of Adits 1
    1st Condition of Workings CAVED AT PORTAL
    2nd Condition of Workings PLUGGED
    Capacity 228
    Capacity Units MT ORE/DAY
    Unit Production Cost 28
    Units of Production $/MT ORE
    Operating Days per Year 284
    Operating Shifts per Day 3
    Year of Information 1977

Reference information

Bibliographic references

  • Deposit

    MONTANA DEPT. OF STATE LANDS. ABANDONED HARDROCK MINES

  • Deposit

    PRIORITY SITES, SUMMARY REPORT, MARCH 1994, P. 5-154.

  • Deposit

    JOHNS,1970,MBMG BULL.79,P.85

  • Deposit

    CALKINS AND MACDONALD,1909,USGS BULL.384,P.103

  • Deposit

    GIBSON,1948,USGS BULL.956,P.111

  • Deposit

    YOUNG,ETAL,1962,MBMG BULL.30,P.29

  • Deposit

    ZARTMAN AND STACEY,1971,ECON-GEOLOGY,VOL.66,P.852

  • Deposit

    UNPUB. MBMG FILE DATA, TEDROW REPORT

  • Deposit

    UNPUB MPF DATA

General comments

Subject category Comment text
Environmental Factors THE TAILINGS WERE LOCATED WITHIN THE FLOODPLAIN OF SNOWSHOE CREEK. SOME RECLAMATION HAD BEEN DONE ON THE LOWER WASTE ROCK DUMP. THERE WERE NO ADIT DISCHARGES ASSOCIATED WITH THE SITE; HOWEVER, AN INTERMITTENT TRIBUTARY TO PERENNIAL SNOWSHOE CREEK RAN THROUGH THE SITE. THE TRIBUTARY HAD A TRICKLE OF FLOW DURING THE INVESTIGATION WHICH EXCEEDED THE MAXIMUM CONTAMINANT LEVEL FOR CADMIUM. THE DOWNSTREAM SAMPLE IN SNOWSHOE CREEK ALSO EXCEEDED THE MAXIMUM CONTAMINANT LEVEL FROM CADMIUM. OBSERVED RELEASES TO SHOWSHOE CREEK WERE DOCUMENTED FOR ARSENIC, CADMIUM, IRON, LEAD AND ZINC. THE MAXIMUM CONTAMINANT LEVEL EXCEEDANCE FOR CADMIUM CAN BE DIRECTLY ATTRIBUTED TO THE SITE. THE THREE OPEN ADITS AND SEVERAL STEEP, UNSTABLE WASTE PILES WERE ACCESSIBLE AND POTENTIALLY HAZARDOUS.

Reporter information

Type Date Name Affiliation Comment
Reporter 23-AUG-94 O'Brien, Mary Ann U.S. Bureau of Mines

Beyond USGS

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

External references