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

Riley

Past Producer in San Bernardino county in California, United States with commodities Tungsten, Copper, Gold, Silver
Map
XML
JSON
KML
B
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. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10036249
MRDS ID M024326
Record type Site
Current site name Riley
Alternate or previous names Blue Grass, Excelsior, Standard No. 1, Standard Tungsten.
Related records 10286944

Geographic coordinates

Geographic coordinates: -115.54251, 35.36084 (WGS84)
Relative position 6 AIRLINE MILES SE OF MOUNTAIN PASS, 10 MILES NORTH OF CIMA

Site location context

Political divisions (FIPS codes)

San Bernardino(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Cima Dome(quadrangle 1:24,000 scale)

Ivanpah(quadrangle 1:100,000 scale)

Kingman(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

Mojave National Preserve(National Preserve)

National Preserve NPS(Type of land area)

NPS(Federal land areas administered by NPS)

Geographic areas

Country State County
United States California San Bernardino

Public Land Survey System information

Meridian Township Range Section Fraction State
San Bernardino 015N 014E 18,19 California

Commodities

Commodity Importance
Tungsten Critical Primary
Copper Primary
Gold Primary
Silver Primary

Materials information

Materials Type of material
Chrysocolla Ore
Malachite Ore
Scheelite Ore
Epidote Gangue
Garnet Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -115.54251, 35.36084
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Fault

Ore body information

  • General form IRREGULAR SHOOTS
    Width 12.19M

Controls for ore emplacement

  • Copper Along Vertical, Nw Trending Fault And Along Fracture And Bedding Planes In Limestone.

Economic information about the deposit and operations

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

Comments on the production information

  • 1902 THE EXCELSION YIELDED A SIGNIFICANT TONNAGE OF COPPER ORE. 1902 - 1908 OPERATIONS YIELDED CU-AU-AG ORE VALUED AT ABOUT $75,000. 1940 - 1941 SMALL TONNAGE OF TUNGSTEN ORE WAS MINED, NO OTHER INFORMATION AVAILABLE.

Comments on the workings information

  • PRIOR TO 1908 ALL WORK WAS UNDERGROUND. SHAFT SEVERAL HUNDRED FEET DEEP, WITH SOME LATERAL WORKINGS. RECENT DEVELOPMENTS CONSISTS OF A SERIES OF OPEN CUTS, TRENDS AND RELATIVELY SHALLOW SHAFTS AND ADITS ALONG FAULT ZONE.

Reference information

Bibliographic references

  • Deposit

    TUCKER, W. B. AND SAMPSON, R. J., 1941; RECENT DEVELOPMENTS IN THE TUNGSTEN IN CA.; CA. JOUR. MINES AND GEOLOGY, VOL. 37, NO. 4, P. 585 - 586.

  • Deposit

    WRIGHT, L. A. AND OTHERS, 1953; MINES AND MINERAL DEPOSITS, SAN BERNARDINO COUNTY, CA.; CA. JOUR. MINES AND GEOLOGY, VOL. 49, NOS. 1 & 2, P. 151.

  • Production

    WRIGHT, L. A.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1980 Fraticelli, L. A. (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.