Fanny Prospect

Occurrence in Snohomish county in Washington, United States with commodities Gold, Silver, Copper
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. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10036728
MRDS ID M025634
Record type Site
Current site name Fanny Prospect
Related records 10180105

Geographic coordinates

Geographic coordinates: -121.56455, 48.06731 (WGS84)
Elevation 914
Location accuracy 1000(meters)
Relative position ABOUT 0.8 MI SOUTH OF SILVERTON, Esttimated From Map And Description In Broughton

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)

Stillaguamish(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 030N 010E 19 SE4 Washington

Comments on the location information

  • ON SPUR OF MOUNTAIN SOUTH OF SILVER GULCH

Commodities

Commodity Importance
Gold Primary
Silver Primary
Copper Primary

Analytical data

Result $12-46/TON AU+AG+CU

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 Squire Creek Stock And Related Intrusive Rocks
    Rock description Squire Creek Stock And Related Intrusive Rocks
    Stratigraphic age (youngest) Paleocene
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Paleocene

Economic information

Ore body information

  • General form VEIN
    Thickness 0.56M

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Silverton District

Land status

Ownership category National Forest
Area name In Mount Baker National Forest

Comments on the workings information

  • 30 FT ADIT, OPEN CUTS

Reference information

Bibliographic references

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.