1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Magruder Prospects

Occurrence in Yuba county in California, United States with commodity Chromium
Map
XML
JSON
KML
C
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. 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. Ownership information
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10043633
MRDS ID M100445
Record type Site
Current site name Magruder Prospects

Geographic coordinates

Geographic coordinates: -121.07604, 39.59071 (WGS84)
Elevation 1256
Location accuracy 1000(meters)
Relative position Assumed Spot At Center Nw Of Sw, Sect. 15.

Site location context

Political divisions (FIPS codes)

Yuba(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Strawberry Valley(quadrangle 1:24,000 scale)

Chico(quadrangle 1:100,000 scale)

Chico(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Fork Feather(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Federal lands

Plumas 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 California Yuba

Public Land Survey System information

Meridian Township Range Section Fraction State
020N;020N 008E;008E 15;22 NW OF SW (15); NW (22) California

Comments on the location information

  • DEPOSIT IN SECT. 15 LOCATED ABOUT 20 YARDS W OF THE COUNTY ROAD BETWEEN STRAWBERRY VALLEY AND LA PORTE, CA. THE DEPOSIT IN SECT. 22 IS LOCATED IN THE CENTER OF THAT SECTION NEAR A TIMBER ROAD ABOUT 3/8 OF A MILE SE OF THE COUNTY ROAD.

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore

Analytical data

Result ORE AVERAGED 28-30% CR2O3

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) -121.07604, 39.59071
ListMap

Economic information

Ore body information

  • General form IRREG

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Strawberry Valley Area

Land status

Ownership category National Forest

Ownership information

  • Type Operator
    Owner Magruder, E. C.
    Home office Strawberry Valley, Ca.
    First year 1943
  • Type Owner
    Owner Soper-Wheeler Timber Co.
    First year 1943

Comments on the workings information

  • SECT. 15 DEPOSIT WORKINGS CONSIST OF A SMALL OPEN CUT. SECT. 22 DEPOSIT WORKINGS CONSIST OF SEVERAL SHALLOW PITS SCATTERED OVER AN AREA ABOUT 300 FT LONG AND 100 FT WIDE.

Comments on development

  • ORE WAS MINED BUT NOT SHIPPED FROM THESE PROSPECTS.

Reference information

Bibliographic references

  • Deposit

    RYNEARSON, G.A., 1953, CDMG BULL 134, PART 3, CHAPT. 5, P. 261, 317

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-82 Oster, Karel L. (Albers, John P.) 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

Authoritative California resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.