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Riley Mine

Past Producer in Humboldt county in Nevada, United States with commodities Copper, Gold, Lead, Molybdenum, Silver, 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. Ownership information
  13. Production statistics
  14. Reserves and resources
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10222483
MRDS ID M030031
MAS/MILS ID 0320130032
Record type Site
Current site name Riley Mine
Alternate or previous names Riley, Dernan Property, Reilly Mine
Related records 10037016

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -117.25112, 41.19097 (WGS84)
Elevation 1722
Location accuracy 100(meters)
Relative position Center of several open cut workings

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)

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 09 SENW Nevada

Commodities

Commodity Importance
Copper Tertiary
Gold Tertiary
Lead Tertiary
Molybdenum Tertiary
Silver Tertiary
Tungsten Critical Tertiary
Zinc Critical Tertiary

Materials information

Materials Type of material
Chalcopyrite Unknown
Diopside Unknown
Epidote Unknown
Galena Unknown
Garnet Unknown
Malachite Unknown
Molybdenite Unknown
Pyrite Unknown
Pyroxene Unknown
Quartz Unknown
Scheelite Unknown
Sphalerite Unknown
Wollastonite Unknown

Nearby scientific data

Ore Body (1) -117.25112, 41.19097
ListMap

Economic information

Ore body information

  • Strike N89W
    Dip 40E
    Thickness 2M
    Length 460M
    Width 120M
    Depth to top 45M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 TABULAR
    Shape of Orebody #2 IRREGULAR
    Primary mode of Origin CONT METASOMATIC
    Primary Ore Control CONTACT ZONE
    Secondary Ore Control LITHOLOGY
    Degree of Wallrock Alter. INTENSE
    Type of Wallrock Alter. #1 UNKNOWN
    Type of Wallrock Alter. #2 PROPYLITIC
    Type of Wallrock Alter. #3 SILICIFICATION
    Strike And Dip N10W:40E
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 45
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 830421
  • Strike N89W
    Dip 40E
    Thickness 183M
    Length 15M
    Width 3M
    Area 32HA
    Depth to top 0M
    Field Value
    Type of Orebody #1 STOCKWORK
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 FISSURE VEIN
    Primary mode of Origin CONT METASOMATIC
    Secondary mode of Origin HYDROTHERMAL
    Primary Ore Control CONTACT ZONE
    Secondary Ore Control LITHOLOGY
    Degree of Wallrock Alter. INTENSE
    Type of Wallrock Alter. #1 CARBONITIZATION
    Strike And Dip N89W:40E
    Avg. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 32
    Date of Last Modification 830421

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1917
Year of first production 1943

Mining district

District name Potosi District

Ownership information

  • Type Owner
    Owner Union Carbide Co.
    Home office Grand Junction, Colorado
    Year 1981

Production statistics

  • Year 1943
    Description Short Tons Of Concentrate Recovered 1200 Annual Conc. Output (65%)
  • Year 1944
    Accuracy Estimate
    Description U.S. Dollars(Estimated) 773000 Total Product Value ($)
  • Year 1945
    Description Short Tons Of Concentrate Recovered 1250 Annual Conc. Output (68%)
  • Year 1946
    Description Short Tons Of Concentrate Recovered 21440 Annual Conc. Output (13%)
  • Year 1947
    Description Short Tons Of Concentrate Recovered 21640 Annual Conc. Output (14%)
  • Year 1948
    Accuracy Estimate
    Description U.S. Dollars(Estimated) 49000 Total Produce Value ($)
  • Year 1952
    Description Short Tons Of Concentrate Recovered 800 Annual Conc. Output (71%)
  • Year 1953
    Description Short Tons Of Concentrate Recovered 5470 Annual Conc. Output (71%)
  • Year 1954
    Description Short Tons Of Concentrate Recovered 5470 Annual Conc. Output (71%)
  • Year 1955
    Description Short Tons Of Concentrate Recovered 9950 Annual Conc. Output (64%)
  • Year 1956
    Description Short Tons Of Concentrate Recovered 6250 Annual Conc. Output (71%)

Reserves and resources

  • Type In-situ
    Estimate year 1946
    Indicated 413000mt ore
    Demonstrated 413000mt ore
    Inferred 579000mt ore
    Total resources 992000mt ore
    Commodity Subtype Grade units Group Importance Year
    Tungsten Wo3 0.69 wt-pct Tungsten Trace 1946

Workings at the site

  • Type of workings Underground
    Length 1525M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Hardness of Rock HARDROCK WITH LITTLE WATER
    Rock Support Chars. SUPPORTING
    Mine Support Chars. TIMBER
    Length of Inclines (m) 137
    Avg. Length of Adits (m) 107
    Capacity 200
    Capacity Units MT ORE/DAY
    Unit Production Cost 22
    Units of Production $/MT ORE
    Year of Information 1973

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 08-MAR-94 Crandell, William D. U.S. Bureau of Mines
Updater 08-DEC-10 Causey, J. Douglas U.S. Geological Survey Minor consolidation of references and location.

Beyond USGS

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

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.