North Star Prospect

Occurrence in Snohomish county in Washington, United States with commodity 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. Materials information
  8. Alteration
  9. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Ownership information
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10095362
MRDS ID M025920
Record type Site
Current site name North Star Prospect
Related records 10204318

Geographic coordinates

Geographic coordinates: -121.53121, 47.84953 (WGS84)
Elevation 783
Location accuracy 1000(meters)
Relative position ABOUT 2.4 MI NORTHEAST OF INDEX, Estimated On North Star Creek At Given Elevation

Site location context

Political divisions (FIPS codes)

Snohomish(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Index(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 027N 010E 04 Washington

Comments on the location information

  • NEAR HEADWATERS OF NORTH STAR CREEK

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Pyrite Ore
Quartz Gangue

Alteration

  • (Local) Granodiorite Is Altered And Crushed

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 Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Index Batholith
    Rock description Index Batholith
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene

Nearby scientific data

(1) -121.53121, 47.84953

Economic information

Ore body information

  • General form VEIN
    Strike N24E
    Dip 78NW
    Thickness 0.08M

Controls for ore emplacement

  • Fracturing

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Index District

Land status

Ownership category National Forest
Area name In Snoqualmie National Forest

Ownership information

  • Type Owner
    Owner North Star Mining Co.
    First year 1912

Workings at the site

  • Type of workings Underground
    Length 335.28M

Comments on the workings information

  • 2 ADITS

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit SHEAR ZONE CONTAINS IRREGULAR BANDS OF ORE MINERALS 2-3 IN. WIDE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-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.