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Peg Leg Mine

Past Producer in Siskiyou county in California, United States with commodities Chromium, Platinum, Palladium, Iridium, Ruthenium, Rhodium
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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. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Land status
  16. Ownership information
  17. Production statistics
  18. Reserves and resources
  19. Workings at the site
  20. Links to other databases
  21. Bibliographic references
  22. General comments
  23. Reporter information

Geologic information

Identification information

Deposit ID 10077770
MRDS ID W025722
Record type Site
Current site name Peg Leg Mine
Alternate or previous names Lambert, Chrome King
Related records 10214021

Geographic coordinates

Geographic coordinates: -122.72862, 41.62984 (WGS84)
Elevation 1024
Location accuracy 100(meters)
Relative position ABOUT 10 MI SOUTHWEST OF YREKA, Acc For Pge Sample Collection Site, Acc For Pge Sample Collection Site, Acc For Pge Sample Collection Site

Site location context

Political divisions (FIPS codes)

Siskiyou(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Yreka(quadrangle 1:24,000 scale)

Yreka(quadrangle 1:100,000 scale)

Weed(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Scott(hydrologic unit)

Klamath(hydrologic accounting unit)

Klamath-Northern California Coastal(hydrologic subregion)

California(hydrologic region)

Federal lands

Klamath 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 Siskiyou

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 044N 008W 26 NE4 OF SE4 California

Comments on the location information

  • IN KLAMATH NATIONAL FOREST. ON SOUTH BANK OF MOFFETT CREEK. UTM GIVEN IS FOR PGE SAMPLE COLLECTION SITE. LAT/LONG GIVEN IS ESTIMATE OF MINE LOCATION, WHICH IS GIVEN AS MOUTH OF NORTH FLOWING CREEK AT MOFFETT CREEK; UTM FOR THIS IS 4608690N, 522540E

Commodities

Commodity Importance
Chromium Critical Primary
Platinum Critical Tertiary
Palladium Critical Tertiary
Iridium Critical Tertiary
Ruthenium Critical Tertiary
Rhodium Critical Tertiary

Materials information

Materials Type of material
Chromite Ore
Olivine Gangue

Analytical data

Result 1 PGE ANALYSIS: PT=<10 PPB
Result PD=<1 PPB
Result IR=170 PPB
Result RU=650 PPB
Result RH=21 PPB. CR:FE=3.45:1.

Mineral occurrence model information

Model code 15
USGS model code 8a
Deposit model name Podiform chromite (minor)
Mark3 model number none

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite
    Rock unit name Trinity Ultramafic Sheet
    Rock description Trinity Ultramafic Sheet
    Stratigraphic age (youngest) Late Permian
    Stratigraphic age (youngest) Late Permian
    Stratigraphic age (youngest) Late Permian
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite

Economic information

Geologic structures

Type of structure Local
Structure description Sharp Fault Striking N70-75w, Dipping 20-30n

Ore body information

  • General form LENSES, PODS, AND STRINGERS OF MASSIVE ORE

Controls for ore emplacement

  • Magmatic Segregation

Economic information about the deposit and operations

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

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner Basil Wood
    First year 1950

Production statistics

  • Year 1943
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^57.17% Cr2o3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Cr2O3 Chromium Chromium 57wt-pct

Reserves and resources

  • Type In-situ
    Estimate year 1943
    Total resources 45000mt ore
    Commodity Subtype Grade units Group Importance Year
    Chromium Cr2O3 54 wt-pct Chromium Major 1943

Workings at the site

  • Type of workings Surface/Underground
    Length 91.44M

Comments on the workings information

  • LARGE OPEN CUT, 250-300 FT OF UNDERGROUND WORKINGS

Reference information

Bibliographic references

  • Deposit

    WELLS, F.G., AND CATER, F.W., JR., 1950, GEOLOGICAL INVESTIGATIONS OF CHROMITE IN CALIFORNIA: CALIFORNIA DIVISION OF MINES BULLETIN 134, PT. 1, CH. 2, P. 112-113.

  • Deposit

    CARLSON, C.A., AND OTHERS, 1985, ANALYSES FOR PLATINUM-GROUP ELEMENTS IN SAMPLES FROM PODIFORM CHROMITE DEPOSITS, CALIFORNIA AND OREGON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 85-442, 14 P.

General comments

Subject category Comment text
Deposit LARGEST LENS HAD 155 TONS OF ORE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-90 Peterson, Jocelyn A. U.S. Geological Survey

Beyond USGS

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

External references

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.