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

Mary Lou Claim

Past Producer in Siskiyou county in California, United States with commodities Chromium, Iron
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. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Mineral rights holdings
  13. Land status
  14. Ownership information
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10117669
MAS/MILS ID 0060931156
Record type Site
Current site name Mary Lou Claim
Alternate or previous names Octopus Claim, Chromite

Geographic coordinates

Point of reference Trench
Geographic coordinates: -123.04753, 41.71173 (WGS84)
Elevation 1122
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

Siskiyou(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Scott Bar(quadrangle 1:24,000 scale)

Happy Camp(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 045 N 010 W 33 SWNWNW California

Commodities

Commodity Importance
Chromium Critical Tertiary
Iron Tertiary

Materials information

Materials Type of material
Chromite Unknown
Olivine Unknown
Pyroxene Unknown
Serpentine Unknown

Nearby scientific data

Trench (1) -123.04753, 41.71173
ListMap

Economic information

Ore body information

  • Length 4M
    Width 3M
    Area 1HA
    Depth to top 0M
    Field Value
    Type of Orebody #1 DISSEMINATED
    Shape of Orebody #1 IRREGULAR
    Shape of Orebody #2 TABULAR
    Shape of Orebody #3 LENTICULAR
    Primary mode of Origin MAGMATIC DIFFER
    Primary Ore Control LITHOLOGY
    Secondary Ore Control FRACTURING
    Degree of Wallrock Alter. SLIGHT
    Type of Wallrock Alter. #1 CARBONITIZATION
    Type of Wallrock Alter. #2 SILICIFICATION
    Strike And Dip N55W:
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 1
    Date of Last Modification 820825

Economic information about the deposit and operations

Operation type Surface
Development status Past Producer
Commodity type Metallic
Significant No
Year of first production 1918

Mining district

District name Mc Guffy Creek

Mineral rights holdings

Type of mineral rights Located Claim

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner Folden, Luis
    Home office California
    Year 1976
  • Type Owner
    Owner Margaret Folden
    Home office California
    Year 1976

Workings at the site

  • Type of workings Surface
    Area 1HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Mining Method OPEN PIT
    Primary Material Cover HARD ROCKS
    Percentage 100
    Hardness of Ore HARD ROCKS
    Avg. Bench Height (meters) 10
    Max. Pit Slope (degrees) 60

Reference information

Bibliographic references

  • Deposit

    USG.S.BULL 948-B STRATEGIC MINERAL INVESTIGATION PP.55-62,19

  • Deposit

    S. USGS BULL 922-J,CHROMITE DEPOSITS IN THE SEIAD QUAD. CAL

  • Deposit

    1940 RYNEARSON

  • Deposit

    CDMG BULL 134,GEOL INVEST OF CHROMITE IN CAC PP.93,WELLS,195

General comments

Subject category Comment text
Deposit GRADE OF CONCENTRATES AVERAGED 49.86 PERCENT CR2O3,14.43 PER ,WITH A 2.36 TO 1 CR/FE RATIO. RESERVES PROBABLY LOW(80 LONG TONS) OR NONEXISTANT. ANALYSIS BY CDMG IN 1976 GAVE FOLLOWING PERCENTAGES-BANDED O 1.00,CR2O3 55.54,FEO 12.44,TOTAL FE 15.44,AL203 13.23,MGO 12 FE 3.17.ORBICULAR ORE=S102 8.10,CR2O3 43.85,FEO 18.04,TOTAL 8,AL203 9.45,MGO 15.75,CR/FE 1.88

Reporter information

Type Date Name Affiliation Comment
Reporter 27-FEB-1984 Stinson U.S. Bureau of Mines

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.