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Mystery

Past Producer in Snohomish county in Washington, United States with commodities Gold, Silver, Copper, Lead, Zinc, Arsenic, Antimony
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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. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Reserves and resources
  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 10048556
MRDS ID MP00153
Record type Site
Current site name Mystery
Alternate or previous names Monte Cristo
Related records 10056112

Geographic coordinates

Geographic coordinates: -121.36982, 47.98093 (WGS84)
Elevation 1341
Relative position 1 MI EAST-SOUTHEAST OF MONTE CRISTO; ABOUT 3 MI NORTH-NORTHWEST OF BLANCA LAKE

Site location context

Political divisions (FIPS codes)

Snohomish(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Blanca Lake(quadrangle 1:24,000 scale)

Skykomish River(quadrangle 1:100,000 scale)

Wenatchee(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Sauk(hydrologic unit)

Puget Sound(hydrologic accounting unit)

Puget Sound(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Mt. Baker-Snoqualmie 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 Washington Snohomish

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 029N 011E 26 Washington

Comments on the location information

  • UNSURVEYED

Commodities

Commodity Importance
Gold Primary
Silver Primary
Copper Primary
Lead Primary
Zinc Critical Primary
Arsenic Critical Tertiary
Antimony Critical Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Jamesonite Ore
Pyrite Ore
Realgar Ore
Sphalerite Ore
Calcite Gangue
Epidote Gangue
Quartz Gangue

Analytical data

Result JOHNSON AND OTHERS ANALYZED MANY SAMPLES. MAXIMUM VALUES ARE: 0.652 OZ/TON AU, 23.6 OZ/TON AG, 4% CU, 6.3% PB, 12.5% ZN, 18.5% AS, 7.2% SB

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Darrington Phyllite;Barlow Pass Volcanics;Grotto Batholith
    Rock description Darrington Phyllite;Barlow Pass Volcanics;Grotto Batholith

Nearby scientific data

(1) -121.36982, 47.98093
ListMap

Economic information

Ore body information

  • General form VEIN
    Strike NE
    Dip NW
    Thickness 2.07M
    Length 1767.84M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No

Mining district

District name Monte Cristo District

Land status

Ownership category National Forest
Area name In Mount Baker National Forest

Ownership information

  • Type Operator
    Owner H. S. Ofstie
    First year 1949

Reserves and resources

  • Type In-situ
    Estimate year 1983
    Total resources 3000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.948 g/mt Gold Major 1983
    Silver Ag 48 g/mt Silver Major 1983
    Copper Cu 0.13 wt-pct Copper Major 1983
    Lead Pb 0.5 wt-pct Lead Major 1983
    Zinc Zn 0.75 wt-pct Zinc Major 1983
    Arsenic As 2.13 wt-pct Arsenic Trace 1983
    Antimony Sb 0.36 wt-pct Antimony Trace 1983

Comments on the reserve resource information

  • INDICATED AND INFERRED, RESTRICTED MARGINAL RESERVES (UPPER BLOCK). LOWER BLOCK CONTAINS 5,500,000 TONS OF INFERRED, RESTRICTED MARGINAL RESERVES PRESUMABLY WITH THE SAME GRADES

Workings at the site

  • Type of workings Underground
    Length 1834.9M

Comments on the workings information

  • EXTENSIVE UNDERGROUND WORKINGS, SOME OF WHICH CONNECT TO THE NEW DISCOVERY MINE AND PRIDE OF THE WOODS MINE

Reference information

Bibliographic references

  • Deposit

    JOHNSON, F.L., DENTON, D.K., IVERSON, S.R., MCCULOCH, R.B., STEBBINS, S.A., AND STOTELMEYER, R.B., 1983, MINERAL RESOURCES OF THE GLACIER PEAK RARE II AREA (NO. L6031), SNOHOMISH COUNTY, WASHINGTON: U.S. BUREAU OF MINES OPEN-FILE REPORT MLA 75-83, P. 6, 28.

  • Deposit

    DERKEY, R.E., JOSEPH, N.L., AND LASMANIS, RAYMOND, 1990, METAL MINES OF WASHINGTON - PRELIMINARY REPORT: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-18, P. 359.

  • Deposit

    HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 162.

  • Production

    JOHNSON AND OTHERS

General comments

Subject category Comment text
Deposit QUARTZ VEINS IN LARGE MINERALIZED ZONE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1992 Peterson, Jocelyn A. U.S. Geological Survey

Beyond USGS

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

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