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Pettigrew - Stafford Lease

Occurrence in Placer county in California, United States with commodity Manganese
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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. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10033504
MRDS ID M020075
Record type Site
Current site name Pettigrew - Stafford Lease
Alternate or previous names Gray Lease
Related records 10116212

Geographic coordinates

Geographic coordinates: -120.87186, 39.03545 (WGS84)
Relative position 1 MI. BY ROAD N. W. OF YANKEE JIMS, 11 MI. N. W. TO COLFAX ON THE SOUTHERN PACIFIC.

Site location context

Political divisions (FIPS codes)

Placer(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Foresthill(quadrangle 1:24,000 scale)

Truckee(quadrangle 1:100,000 scale)

Chico(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

North Fork American(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Placer

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 014N 010E 29 California

Comments on the location information

  • LOCATED IN NE 1/4 SECTION 29

Commodities

Commodity Importance
Manganese Critical Tertiary

Materials information

Materials Type of material
Manganite Ore
Psilomelane Ore
Pyrolusite Ore

Analytical data

Result AVERAGE GRADE 35 TO 40 PERCENT MANGANESE

Economic information

Ore body information

  • Thickness 0.3M

Comments on the geologic information

  • GEOL.DESC: POCKETS OF MANGANESE OXIDE IN MASSIVE, YELLOW TO WHITE CHERT AND META CHERT, PARTLY RECRYSTALLIZED TO FINE GRAINED QUARTZITE AND CUT BY 1 TO 6 INCH QUARTZ VEINS. THE CHERT IS ENCLOSED IN BUFF TO GRAY SLATE OR PHYLLITE. POCKETS OF OXIDE ARE A FEW INCHES TO A FOOT THICK. MOST ORE IS POROUS PYROLUSITE, SOME PSILOMELANE, AND MANGANITE (?). QUARTZ VEINS TREND N 55 W AND DIP 20 TO 25 SW, AND CONTAIN VUGS WITH CRYSTALS UP TO AN INCH LONG AND 1/2 INCH THICK.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Reference information

Bibliographic references

  • Deposit

    D.O.M. BULL. 152 1950 PP 170 - 171

  • Deposit

    D.O.M. BULL. 125 1943 P. 150 , 65

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1977 Killman, K.; Albers, J. 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.