Mount Vernon Deposit

Prospect in Skagit county in Washington, United States with commodities Chromium, Gold, Nickel, Silver
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. Mineral rights holdings
  12. Land status
  13. Ownership information
  14. Reserves and resources
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10132114
MRDS ID W001173
MAS/MILS ID 0530570184
Record type Site
Current site name Mount Vernon Deposit

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -122.29264, 48.36871 (WGS84)
Elevation 91
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Skagit(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Conway(quadrangle 1:24,000 scale)

Port Townsend(quadrangle 1:100,000 scale)

Victoria(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Skagit(hydrologic unit)

Puget Sound(hydrologic accounting unit)

Puget Sound(hydrologic subregion)

Pacific Northwest(hydrologic region)

Geographic areas

Country State County
United States Washington Skagit

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 033 N 004 E 09 N2 Washington

Commodities

Commodity Importance
Chromium Critical Tertiary
Gold Primary
Nickel Critical Primary
Silver Tertiary

Materials information

Materials Type of material
Ankerite Unknown
Bravoite Unknown
Calcite Unknown
Chalcedony Unknown
Chromite Unknown
Dolomite Unknown
Magnesite Unknown
Marcasite Unknown
Opal Unknown
Pyrite Unknown
Quartz Unknown
Serpentine Unknown

Nearby scientific data

Main Entrance (1) -122.29264, 48.36871

Economic information

Ore body information

  • Strike N70W
    Dip 85S
    Thickness 60M
    Length 3200M
    Width 440M
    Area 260HA
    Depth to top 0M
    Field Value
    Type of Orebody #1 BRECCIA FILL
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 REPLACEMENT
    Primary mode of Origin RESIDUAL CONCENT
    Secondary mode of Origin HYDROTHERMAL
    Primary Ore Control FRACTURING
    Degree of Wallrock Alter. NONE
    Strike And Dip N70W:85S
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 260
    Date of Last Modification 830316

Comments on the geologic information

  • FAULT ZONE BETWEEN SERPENTINE AND SANDSTONE IS MADE UP OF SILICA-CARBONATE ROCK WITH CENTRAL CORE OF SULFIDE BEARING BRECCIA. SILICA-CARBONATE ROCK PORTION IS 2 MT. LONG AND 100 TO 400 FT. WIDE. SULFIDE BRECCIA IS IN SMALL LENSES ALONG CORE.

Economic information about the deposit and operations

Operation type Surface
Development status Prospect
Commodity type Metallic
Significant No
Discovery year 1936

Mineral rights holdings

Type of mineral rights Fee Ownership

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Pacific Nickel Co.
    Home office Washington
    Year 1975
    First year 1941
    Last year 1943

Reserves and resources

  • Type In-situ
    Estimate year 1941
    Inferred 45000000mt ore
    Total resources 45000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Nickel Ni 0.27 wt-pct Nickel Major 1941
    Gold Au 0.67 g/mt Gold Major 1941

Comments on the reserve resource information

  • M1C1=R1 M1C1= TOTAL RESOURCE (SILICA-CARBONATE ROCK + SULFIDE BEARING BRECCIA). M1C2= SULFIDE BEARING BRECCIA ONLY.

Reference information

Bibliographic references

  • Reserve-Resource

    HOBBS, SW AND PECORA, MT, NICKEL-GOLD DEPOSIT NEAR MT.

  • Reserve-Resource

    VERNON, SKAGIT, CO., WA.: USGS BULL. 931-D, PP.57-78, 1941.

  • Reserve-Resource

    BULLETIN 931-D, 78P.

  • Deposit

    HUNTING, MARSHALL T. GOLD IN WASHINGTON: WASHINGTON DIV. OF

  • Deposit

    MINES AND GEOL., BULL. 42, P. 87, 1955.

Reporter information

Type Date Name Affiliation Comment
Reporter 15-APR-94 Ridenour, James U.S. Bureau of Mines

Beyond USGS

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