Mount Vernon Deposit

Prospect in Skagit county in Washington, United States with commodities Chromium, Gold, Nickel, Silver

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)
(click for info)

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 Tertiary
Gold Primary
Nickel 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

Ore body information

  • Strike N70W
    Dip 85S
    Thickness 60M
    Depth to top 0M
    Width 440M
    Length 3200M
    Area 260HA
    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
    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

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 45,000,000mt ore
    Total resources 45,000,000mt 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

Links to other databases

Agency Database name Acronym Record ID Notes
U.S. Bureau of Mines Minerals Availability System MAS 0530570184
USGS Mineral Resources Data System MRDS W001173 MAS references MRDS

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