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

Riley Extension

Past Producer in Humboldt county in Nevada, United States with commodities Copper, Lead, Tungsten, Zinc
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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. 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. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10149720
MAS/MILS ID 0320130046
Record type Site
Current site name Riley Extension

Geographic coordinates

Point of reference Trench
Geographic coordinates: -117.25596, 41.19409 (WGS84)
Elevation 1829
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Humboldt(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Adam Peak(quadrangle 1:24,000 scale)

Osgood Mountains(quadrangle 1:100,000 scale)

McDermitt(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Humboldt(hydrologic unit)

Humboldt(hydrologic accounting unit)

Black Rock Desert-Humboldt(hydrologic subregion)

Great Basin(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management NV)

Bureau of Land Management NV BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Nevada Humboldt

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 038 N 042 E 04 E2SWSW Nevada

Commodities

Commodity Importance
Copper Tertiary
Lead Tertiary
Tungsten Critical Tertiary
Zinc Critical Tertiary

Materials information

Materials Type of material
Diopside Unknown
Epidote Unknown
Garnet Unknown
Quartz Unknown
Scheelite Unknown
Wollastonite Unknown

Nearby scientific data

Trench (1) -117.25596, 41.19409
ListMap

Economic information

Ore body information

  • Dip 50E
    Thickness 3M
    Length 107M
    Width 183M
    Area 8HA
    Depth to top 0M
    Field Value
    Type of Orebody #1 REPLACEMENT
    Shape of Orebody #1 TABULAR
    Primary mode of Origin CONT METASOMATIC
    Primary Ore Control LITHOLOGY
    Secondary Ore Control CONTACT ZONE
    Degree of Wallrock Alter. INTENSE
    Type of Wallrock Alter. #1 CARBONATE SILIC
    Type of Wallrock Alter. #2 SILICIFICATION
    Strike And Dip :50E
    Avg. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 8
    Date of Last Modification 811112

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Past Producer
Commodity type Metallic
Significant No

Mining district

District name Potosi District

Mineral rights holdings

Type of mineral rights Fee Ownership

Land status

Ownership category BLM Administrative Area

Workings at the site

  • Type of workings Underground
    Length 976M
    Overall depth 56M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Hardness of Rock HARDROCK WITH LITTLE WATER
    Rock Support Chars. SUPPORTING
    Mine Support Chars. TIMBER
    Capacity 100
    Capacity Units MT ORE/DAY
    Unit Production Cost 25
    Units of Production $/MT ORE

Reference information

Bibliographic references

  • Deposit

    USGS PROF PAPER 431,1964,P.105-108,PL.6,7

  • Deposit

    NEV BUR OF MINES BULL 44,1946,P.21

  • Deposit

    NEV BUR OF MINES BULL 59,1964,TB19

Reporter information

Type Date Name Affiliation Comment
Reporter 04-MAR-92 Western Field Operations Center (WFOC) U.S. Bureau of Mines

Beyond USGS

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

External references

Maps centered on this site

Authoritative Nevada resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.