Twins Group

Occurrence in Skagit county in Washington, United States with commodities Chromium, Iron, Stone, Crushed/Broken
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. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10179826
MAS/MILS ID 0530570015
Record type Site
Current site name Twins Group
Alternate or previous names Smith, Last Chance, Ready Cash, Cypress Lake, Smith Open Cut

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -122.71376, 48.5756 (WGS84)
Elevation 305

Site location context

Political divisions (FIPS codes)

Skagit(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Cypress Island(quadrangle 1:24,000 scale)

Bellingham(quadrangle 1:100,000 scale)

Victoria(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Strait of Georgia(hydrologic unit)

Puget Sound(hydrologic accounting unit)

Puget Sound(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

ST(Federal land areas administered by ST)

Geographic areas

Country State County
United States Washington Skagit

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 036 N 001 E 29 Washington

Commodities

Commodity Importance
Chromium Critical Tertiary
Iron Tertiary
Stone, Crushed/Broken Tertiary

Materials information

Materials Type of material
Chromite Unknown
Magnetite Unknown
Olivine Unknown
Serpentine Unknown

Nearby scientific data

Ore Body (1) -122.71376, 48.5756

Economic information

Ore body information

  • Thickness 9999M
    Length 999999M
    Width 999999M
    Area 42HA
    Depth to top 99999M
    Field Value
    Type of Orebody #1 DISSEMINATED
    Shape of Orebody #1 LENTICULAR
    Type of Orebody #2 FISSURE VEIN
    Shape of Orebody #2 OTHER
    Primary mode of Origin MAGMATIC DIFFER
    Primary Ore Control IGNEOUS
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Strike And Dip N25W:
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 9999
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 42
    Date of Last Modification 830217

Economic information about the deposit and operations

Operation type Surface
Development status Occurrence
Commodity type Both
Significant No
Discovery year 1902
Year of first production 1918

Mining district

District name Cascade District

Mineral rights holdings

Type of mineral rights Located Claim
Type of mineral rights Unknown

Land status

Ownership category Private

Reference information

Bibliographic references

  • Deposit

    CONWAY R D GEOCHMY CYPRS I ULTRA-MFC BODY WA UNPUBD THESIS U

  • Deposit

    MCLELLAN R D GEOL SAN JUAN ISLES UWA PUBS IN GEOL VOL 2 1927

  • Deposit

    PARDEE J T OTHERS CR ORES IN WASHUSGS BUL 725-A 1922

  • Deposit

    VHAY J S US CONG 89TH 2ND SES COMINTERIOR INSULAR AFRS COM P

  • Deposit

    WILSON HEWITT OTHERS SOME REFRACTPROPS WASH CR USBM RI 3694

  • Deposit

    FULKERSON F B OTHERS USBM MINSYR BK VOL 3 1958 P1002

  • Deposit

    WASH. DIV. OF MINES AND GEOL. BULL. 57, 1969.

  • Deposit

    RAGAN, D.M., GEOL. OF TWIN SISTERS DUNITE NORTHERN

  • Deposit

    CASCADES, WASHINGTON, UNPUB THESIS UNIV OF WASH, 1961.

  • Deposit

    SPANSKI, G.T., TWIN SISTERS MTS, WASH, UNIV OF

  • Deposit

    ILLINOIS 1963.

  • Deposit

    CHROMITE DEPOSITS OF THE THREE LAKES AREA, TWIN SISTERS

  • Deposit

    RANGE, WHATCOM AND SKAGIT COUNTIES, WASH., SUNSHINE

  • Deposit

    MINING CO. CONFIDENTIAL REPORT, 1942.

  • Deposit

    WASH. STATE DIV. OF GEOL. AND EARTH RESOURCES, UNPUB

  • Deposit

    DATA.

General comments

Subject category Comment text
Deposit LOW CHROME IRON RATIO

Reporter information

Type Date Name Affiliation Comment
Reporter 27-FEB-1984 Lucas, J.M. U.S. Bureau of Mines

Beyond USGS

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