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Railroad Lease Mine

Past Producer in Trinity county in California, United States with commodity Chromium
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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. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10043504
MRDS ID M100279
Record type Site
Current site name Railroad Lease Mine
Alternate or previous names Section 11 Mine

Geographic coordinates

Geographic coordinates: -122.52444, 41.16595 (WGS84)
Elevation 1597
Location accuracy 1000(meters)
Relative position Assumed Spot At Center Sw Of Sw, Sect. 11

Site location context

Political divisions (FIPS codes)

Trinity(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mumbo Basin(quadrangle 1:24,000 scale)

Mount Shasta(quadrangle 1:100,000 scale)

Weed(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Trinity(hydrologic unit)

Klamath(hydrologic accounting unit)

Klamath-Northern California Coastal(hydrologic subregion)

California(hydrologic region)

Federal lands

Shasta-Trinity 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 Trinity

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 038N 006W 11 California

Comments on the location information

  • MINE LOCATED ON THE WEST SLOPE OF THE WEST FORK OF CROW CREEK.

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore

Host and associated rocks

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

Nearby scientific data

(1) -122.52444, 41.16595
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Several Ew Striking Faults Dipping Either 60 N Or 65 S.

Ore body information

  • Length 9.14M
    Width 1.52M

Comments on the geologic information

  • THE DEPOSIT OCCURS IN A LARGE PERIDOTITE BODY THAT COVERS APPROX. 300 SQ. MILES OF NE TRINITY CO.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1918
Year of last production 1943

Mining district

District name Crow Creek Area

Land status

Ownership category National Forest

Ownership information

  • Type Operator
    Owner Dunsmoir Chrome Co.
    First year 1943
    Last year 1945
  • Type Owner
    Owner Southern Pacific Co.

Comments on the workings information

  • WORKINGS CONSISTED OF THREE ADITS AND A TRENCH (1943).

Reference information

Bibliographic references

  • Deposit

    WELLS, F.G. AND HAWKES, H.E., 1965, CDMG BULL 134, PART 1, CHAPT. 3, P. 170, 174, 177

  • Production

    CDMG BULL 134, PART 1, CHAPT. 3, P. 170

General comments

Subject category Comment text
Deposit ORE UNCOVERED AT INTERVALS OVER A VERTICAL RANGE OF 100 FT. ORE BODY PINCHED AND SWELLED.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-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.