Keyes Mine

Past Producer in Storey county in Nevada, United States with commodities Silver, Gold
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. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10043923
MRDS ID M231228
Record type Site
Current site name Keyes Mine
Alternate or previous names Belmont Uncle Sem Shaft

Geographic coordinates

Geographic coordinates: -119.62239, 39.31268 (WGS84)
Elevation 1661

Site location context

Political divisions (FIPS codes)

Storey(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Flowery Peak(quadrangle 1:24,000 scale)

Carson City(quadrangle 1:100,000 scale)

Reno(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Carson(hydrologic unit)

Carson(hydrologic accounting unit)

Central Lahontan(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Nevada Storey

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 07N 021E 28 Nevada

Comments on the location information

  • E SIDE OF SEVEN-MILE CANYON
  • BETWEEN UNION AND OPHIR CLAIMS ON LODE

Commodities

Commodity Importance
Silver Primary
Gold Primary

Mineral occurrence model information

Model code 150
USGS model code 25c
Deposit model name Epithermal vein, Comstock
Mark3 model number 16

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Alta Andesite
    Rock description Alta Andesite
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene

Nearby scientific data

(1) -119.62239, 39.31268

Economic information

Ore body information

  • General form TABULAR
    Strike N20E
    Dip 35E
    Thickness 2.13M
    Depth to top 73.15M
    Depth to bottom 109.73M

Controls for ore emplacement

  • Brunswick Lode

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1880
Year of first production 1933

Mining district

District name Comstock Lode

Land status

Ownership category Private

Comments on the production information

  • 550 TONS ORE IN 1933, AVERAGING $7.50/TON

Workings at the site

  • Type of workings Underground
    Overall depth 109.73M

Comments on the workings information

  • SHAFT, WINZE, DRIFTS
  • SHAFTS, DRIFTS.

Comments on development

  • SHAFT SUNK IN 1880'S TO CUT VEIN AT 240 FT. WINZE SUNK TO 300 FT. LEVEL EXPOSING RICH ORE. SOME ORE WAS SHIPPED. MORE ORE DISCOVERED BY DRIFTING IN 1928, ON 300-FT. LEVEL, ANDE MORE ORE AT THE 360 FT. LEVEL PRODUCTION RECORDED ONLY FOR 1933.
  • MOST PRODUCTION WAS FROM ABOVE THE 2000 FT. LEVEL UNTIL AFTER 1909 WHEN NEW ORE BODIES WERE DISCOVERED ON THE EAST VEIN. ORE WAS MINED FOR THE NEXT 4 YEARS FROM THE 2300. FT TO THE 2500 FT. LEVEL, AS WELL AS THE 2000-FT LEVEL.

Reference information

Bibliographic references

  • Deposit

    STODDARD, CARL, AND CARPENTER, J.A., 1950, MINERAL RESOURCES OF STOREY AND LYON COUNTIES, NEVADA: NBMG BULL. 49

  • Deposit

    W.P.A. STATE WRITER'S PROJECT, 1940-1941; INDIVIDUAL HISTORIES OF THE MINES OF THE COMSTOC,UNPUBLISHED OPEN-FILE REPORT, NEV. BUREAU OF MINES & GEOL.

  • Production

    STODDARD, C. AND CARPENTER, J.A., 1950

General comments

Subject category Comment text
Deposit A SHAFT WAS SUNK IN THE 1980'S IN THE HANGING WALL AND ACCORDING TO NEWSPAPERS THE VEIN WAS CUT AT 240 FEET. A WINZE WAS SUNK ON IT TO THE 300 FOOT LEVEL EXPORING A WIDE VEIN WITH RICH ORE ON THE FONT WALL. SOME ORE WAS SHIPPED IN 1928 A STRONG WIDTH OF MINERALIZATION WAS DISCOVERED BY DRIFTS AT THE 300 FT LEVEL, THIS WAS SULFIDE ORE ASSAYED FROM $2 TO $200 PER TON WITH A RATIO OF MILLING GRADE MADE UP OF BARREN WHITE QUARTZ SURROUNDED BY BLACK QUARTZ CARRYING SILVER SULFIDES. IN 1933 THE COMPANY REPORTED A PRODUCTION OF 550 TONS OF A GROSS VALUE OF $3,924. ; INFO.SRC : 1 PUB LIT
Deposit NORTH END OF COMSTOCK LODE; VEIN
Deposit ONE OF THE NORTH END MINES OF THE COMSTOCK LODE. MOST OF THE PRODUCTION CAME FROM ABOVE THE 2000-FT LEVEL UNTIL AFTER 1909 WHEN NEW ORE BODIES WERE DISCOVERED ON THE EAST VEIN. ORE WAS MINED FOR THE NEXT FOUR YEARS FROM THE 2300 FT LEVEL TO THE 2500-FT LEVEL, AND A VEIN ON THE 2000-FT LEVEL PRODUCED ORE. TOTAL PRODUCTION, 1867-1918 WAS 54,047 TONS ORE WITH AN AVERAGE VALUE OF $23.80 PER TON.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1980 Flynn, Patricia Dodd Nevada Bureau of Mines and Geology

Beyond USGS

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

External references

Authoritative Nevada resources

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