Mountain Cedar Prospect

Occurrence in Snohomish county in Washington, United States with commodities Copper, Gold, Silver, Zinc, Chromium, Nickel
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. Geologic structures
  12. Ore body information
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10036817
MRDS ID M025738
Record type Site
Current site name Mountain Cedar Prospect
Alternate or previous names Paystreak, Mystery

Geographic coordinates

Geographic coordinates: -121.54954, 48.0012 (WGS84)
Elevation 838
Relative position ABOUT 2 MI SOUTH-SOUTHWEST OF COPPER LAKE

Site location context

Political divisions (FIPS codes)

Snohomish(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Silverton(quadrangle 1:24,000 scale)

Sauk River(quadrangle 1:100,000 scale)

Concrete(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Skykomish(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 010E 17 NEAR CENTER Washington

Comments on the location information

  • NEAR HEAD OF SULTAN BASIN ON NORTH SIDE OF NORTH FORK SULTAN RIVER

Commodities

Commodity Importance
Copper Primary
Gold Secondary
Silver Secondary
Zinc Critical Tertiary
Chromium Critical Tertiary
Nickel Critical Tertiary

Comments on the commodity information

  • CHROMITE HAS BEEN REPORTED, BUT APPARENTLY NOT VERIFIED

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Chromite Ore
Marcasite Ore
Pyrite Ore
Pyrrhotite Ore
Sphalerite Ore
Sulfur Ore
Quartz Gangue

Analytical data

Result 5.06% CU, 0.06 OZ/TON AU, 9.05 OZ/TON AG, TR NI

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 Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Rock unit name Index Batholith
    Rock description Index Batholith
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene
  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite
    Rock unit name Eastern Metamorphic Belt;Eastern Metamorphic Belt
    Rock description Eastern Metamorphic Belt;Eastern Metamorphic Belt

Nearby scientific data

(1) -121.54954, 48.0012

Economic information

Geologic structures

Type of structure Local
Structure description Shear Zone

Ore body information

  • General form VEIN
    Strike N24W
    Dip 55-75SW
    Thickness 3.05M

Comments on the geologic information

  • THE DISTRICT CONSISTS OF ACCRETED METASEDIMENTARY ROCKS INTRUDED BY GRANITIC ROCKS AND OVERLAIN BY MARINE STRATA AND YOUNGER VOLCANIC ROCKS

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Sultan District

Land status

Ownership category National Forest
Area name In Snoqualmie National Forest

Workings at the site

  • Type of workings Surface/Underground
    Length 243.84M

Comments on the workings information

  • OPEN CUTS, ADITS

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit 2-10 FT WIDE VEIN ALONG SHEAR ZONE. THERE MAY BE TWO PHASES OF MINERALIZATION, A MAGMATIC SULFIDE PHASE DURING CRYSTALLIZATION OF THE ULTRAMAFIC ROCKS WHICH CONCENTRATED SOME OR ALL CU AND NI AND A HYDROTHERMAL PHASE POSSIBLY ASSOCIATED WITH THE INDEX BATHOLITH DURING WHICH THE REMAINING COMMODITIES AND POSSIBLY MORE COPPER WERE CONCENTRATED.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-85 Andrews, David H. (Lawson, William A.) U.S. Geological Survey
Updater 01-FEB-91 Peterson, Jocelyn A. U.S. Geological Survey

Beyond USGS

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