Negro Creek Iron

Occurrence in Chelan county in Washington, United States with commodities Iron, 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. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  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 10055845
MRDS ID SP00044
Record type Site
Current site name Negro Creek Iron
Alternate or previous names Nigger Creek Iron, Davenport

Geographic coordinates

Geographic coordinates: -120.73917, 47.04078 (WGS84)
Elevation 738
Relative position About 2 mi. west-southwest of Iron Mountain

Site location context

Political divisions (FIPS codes)

Kittitas(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Thorp(quadrangle 1:24,000 scale)

Wenatchee(quadrangle 1:100,000 scale)

Wenatchee(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Yakima(hydrologic unit)

Yakima(hydrologic accounting unit)

Yakima(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

ST(Federal land areas administered by ST)

Geographic areas

Country State County
United States Washington Chelan

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 022N 017 E 07 SSW, NESE Washington
Willamette 022 N 017 E 08 NWSW Washington
Willamette 022 N 016 E 12 SESE Washington

Commodities

Commodity Importance
Iron Primary
Chromium Critical Secondary
Nickel Critical Secondary

Materials information

Materials Type of material
Chromite Ore
Magnetite Ore
Serpentine Gangue

Mineral occurrence model information

Model code 110
USGS model code 38a
Deposit model name Lateritic Ni

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite
    Rock unit name Ingalls Complex
    Stratigraphic age (youngest) Late Jurassic
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Conglomerate
    Rock unit name Swauk Formation
    Stratigraphic age (youngest) Eocene

Nearby scientific data

(1) -120.73917, 47.04078

Economic information

Ore body information

  • General form Blanket

Comments on the geologic information

  • Ingalls Complex is an accreted ophiolite terrane
  • Some of the laterites were reworked prior to deposition of the Eocen Swauk Formation. Lamey (1950, p.) tentatively

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Mining district

District name Blewett District

Land status

Ownership category National Forest
Area name Wenatchee National Forest

Ownership information

  • Type Owner
    Owner C.P. Davenport, Auburn, and others
    Year 1944

Comments on the reserve resource information

  • Broughton (1943, p. 16-19) reports 59,850 tons of exposed, 45,720 tons of probable, and 435,850 tons of possible resources.

Workings at the site

  • Type of workings Surface/Underground

Comments on the workings information

  • Adit and several open cuts

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit Deposit consists of reworked residuum derived from underlying ophiolite complex and Swauk Formation

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1991 Berger, Mary A. U.S. Geological Survey
Updater 07-JAN-1992 Frank, Dave U.S. Geological Survey
Reporter 06-JAN-1992 Peterson, Joceylyn A. U.S. Geological Survey

Beyond USGS

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