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Martin Engdahl Prospect

Occurrence in Snohomish county in Washington, United States with commodities Lead, Gold, Silver, Zinc, Copper, Molybdenum, Arsenic
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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. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10036782
MRDS ID M025692
Record type Site
Current site name Martin Engdahl Prospect
Related records 10228833

Geographic coordinates

Geographic coordinates: -121.44121, 47.93092 (WGS84)
Elevation 579
Location accuracy 500(meters)
Relative position 11 MI FROM INDEX; ABOUT 1.25 MI EAST-NORTHEAST OF MINERAL BUTTE

Site location context

Political divisions (FIPS codes)

Snohomish(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Monte Cristo(quadrangle 1:24,000 scale)

Skykomish River(quadrangle 1:100,000 scale)

Wenatchee(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 028N 011E 07 NE4 Washington

Comments on the location information

  • ON WEST SIDE OF SILVER CREEK

Commodities

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

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Molybdenite Ore
Pyrite Ore
Sphalerite Ore
Quartz Gangue

Analytical data

Result 2.5-FT-WIDE VEIN RAN 0.18 OZ/TON AU, 0.9 OZ/TON AG, 2.1% ZN

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 Sedimentary Rock > Clastic Sedimentary Rock > Argillite
    Rock unit name Eastern Melange Belt;Eastern Melange Belt;Eastern Melange Belt
    Rock description Eastern Melange Belt;Eastern Melange Belt;Eastern Melange Belt

Nearby scientific data

(1) -121.44121, 47.93092
ListMap

Economic information

Ore body information

  • General form VEIN
    Thickness 1.22M

Comments on the geologic information

  • ALTHOUGH GEOLOGIC MAP SHOWS ONLY SWAUK FORMATION IN THIS AREA, SMALL BODIES OF EASTERN MELANGE BELT ROCKS TOO SMALL TO SHOW AT MAP SCALE ARE LIKELY THE UNIT TO WHICH THE HOST ROCKS BELONG

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Silver Creek District

Land status

Ownership category National Forest
Area name In Snoqualmie National Forest

Workings at the site

  • Type of workings Surface/Underground
    Length 175.26M

Comments on the workings information

  • 3 ADITS

Reference information

Bibliographic references

  • Deposit

    HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 235.

  • Deposit

    TABOR, R.W., FRIZZELL, V.A., JR., BOOTH, D.B., WHETTEN, J.T., WAITT, R.B., JR., AND ZARTMAN, R.E., 1982, PRELIMINARY GEOLOGIC MAP OF THE SKYKOMISH RIVER 1:100,000 QUADRANGLE, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 82-747, SCALE 1:100,000.

General comments

Subject category Comment text
Deposit 3 MINERALIZED SHEAR ZONES TO 4 FT WIDE CONTAINING DISSEMINATED SULFIDE MINERALS

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-85 Andrews, David H. (Lawson, William A.) U.S. Geological Survey
Updater 01-MAY-92 Peterson, Jocelyn A. U.S. Geological Survey

Beyond USGS

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

Maps centered on this site