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Broken Ridge Prospect

Past Producer in Snohomish county in Washington, United States with commodities Copper, Silver, Gold, Zinc, Silica, Uranium
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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. Alteration
  9. Mineral occurrence model information
  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. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10036703
MRDS ID M025606
Record type Site
Current site name Broken Ridge Prospect
Related records 10229095

Geographic coordinates

Geographic coordinates: -121.44288, 47.90898 (WGS84)
Elevation 686
Location accuracy 1000(meters)
Relative position ABOUT 1.5 MI SOUTHEAST OF MINERAL BUTTE, Estimated In Se/4 Section, Estimated In Se/4 Section

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 18 S2 Washington

Commodities

Commodity Importance
Copper Primary
Silver Primary
Gold Secondary
Zinc Critical Tertiary
Silica Tertiary
Uranium Tertiary

Comments on the commodity information

  • MODERATE RADIOACTIVITY WAS DETECTED IN ONE PLACE ON THE DEWEY CALIM

Materials information

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

Alteration

  • (Local) Silicification

Analytical data

Result 3.1% CU, 3 OZ/TON AG, SOME AU

Mineral occurrence model information

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

Nearby scientific data

(1) -121.44288, 47.90898
ListMap

Economic information

Ore body information

  • General form VEIN

Comments on the geologic information

  • GEOLOGIC MAP OF AREA SHOWS SWAUK FORMATION. NEAREST METAMORPHIC ROCKS ARE OF EASTERN MELANGE BELT

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Production years 1934

Mining district

District name Silver Creek District

Land status

Ownership category National Forest
Area name In Snoqualmie National Forest

Ownership information

  • Type Owner
    Owner Rosaia Mining Co.
    Home office Seattle, Wa.
    First year 1956

Comments on the workings information

  • 2 ADITS (ONE IS SEVERAL HUNDRED FEET LONG), SEVERAL OPEN CUTS

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. 80.

  • Deposit

    TABOR, R.W., FRIZZELL, V.A., JR., YEATS, R.S., AND WHETTEN, J.T., 1982, GEOLOGIC MAP OF THE EAGLE ROCK AND GLACIER PEAK ROADLESS AREAS, SNOHOMISH AND KING COUNTIES, WASHINGTON: U.S. GEOLOGICAL SURVEY MISCELLANEOUS FIELD STUDIES MAP MF-1380-A, SCALE 1:100,000.

General comments

Subject category Comment text
Deposit SILICIFIED AND MINERALIZED SHEAR ZONE

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