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Widow No. 3

Past Producer in Inyo county in California, United States with commodity Boron-Borates
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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. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Reserves and resources
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10023432
MRDS ID I000392
Record type Site
Current site name Widow No. 3
Alternate or previous names New Widow

Geographic coordinates

Geographic coordinates: -116.66366, 36.29581 (WGS84)
Relative position ABOUT 2 MI SSE OF RYAN.

Site location context

Political divisions (FIPS codes)

Inyo(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ryan(quadrangle 1:24,000 scale)

Death Valley Junction(quadrangle 1:100,000 scale)

Death Valley(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Death Valley-Lower Amargosa(hydrologic unit)

Northern Mojave(hydrologic accounting unit)

Northern Mojave-Mono Lake(hydrologic subregion)

California(hydrologic region)

Federal lands

Death Valley National Park(National Park)

National Park NPS(Type of land area)

NPS(Federal land areas administered by NPS)

Geographic areas

Country State County
United States California Inyo

Public Land Survey System information

Meridian Township Range Section Fraction State
025N 003E 16 California

Comments on the location information

  • IN GREENWATER RANGE.

Commodities

Commodity Importance
Boron-Borates Primary

Materials information

Materials Type of material
Colemanite Ore
Ulexite Ore
Calcite Gangue

Mineral occurrence model information

Model code 260
USGS model code 35b.3
Deposit model name Lacustrine borates

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Furnace Creek Formation
    Rock description Furnace Creek Formation

Nearby scientific data

(1) -116.66366, 36.29581
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Fault.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Significant No
Year of first production 1915

Mining district

District name Ryan Area

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner U.S. Borax And Chemical Co.

Reserves and resources

  • Type In-situ
    Estimate year 1976
    Total resources 340000mt ore
    Commodity Subtype Grade units Group Importance Year
    Boron-Borates B2O3 22 wt-pct Boron Major 1976

Comments on the reserve resource information

  • EVANS AND OTHERS ESTIMATE THAT 50% OF THE RESERVES/RESOURCES ARE RECOVERABLE.

Comments on development

  • RESOURCES ARE BLOCKED OUT AND READY TO MINE.

Reference information

Bibliographic references

  • Deposit

    EVANS, J.R., TAYLOR, G.C., AND RAPP, J.S., 1976, MINES AND MINERAL DEPOSITS IN DEATH VALLEY NATIONAL MONUMENT, CALIFORNIA: CALIFORNIA DIVISION OF MINES AND GEOLOGY SPECIAL REPORT 125, 61 P

  • Reserve-Resource

    EVANS AND OTHERS, 1976

General comments

Subject category Comment text
Deposit THE DEPOSIT IS LIMITED ON ONE SIDE BY A FAULT. MAY EXTEND TO THE WIDOW NO. 7 DEPOSIT. CALCITE-COLEMANITE MINERALIZATION ENCLOSES ULEXITE-PROBERTITE MINERALIZATION.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1990 Orris, Greta J. 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.