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  3. Mineral Resource Data System (MRDS)

Silver Cloud Mine

Past Producer in Elko county in Nevada, United States with commodity Mercury
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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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Ownership information
  17. Production statistics
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10040301
MRDS ID M055013
Record type Site
Current site name Silver Cloud Mine
Alternate or previous names Clipper, Maddeford-Smith
Related records 10270929

Geographic coordinates

Geographic coordinates: -116.62705, 41.05323 (WGS84)
Elevation 1640
Relative position 3 MI N OF ANTELOPE CREEK

Site location context

Political divisions (FIPS codes)

Elko(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Rock Creek Ranch(quadrangle 1:24,000 scale)

Tuscarora(quadrangle 1:100,000 scale)

McDermitt(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Rock(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 Elko

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 37N 47E 25,26 Nevada

Commodities

Commodity Importance
Mercury Primary

Materials information

Materials Type of material
Cinnabar Ore
Metacinnabar Ore
Alunite Gangue
Chalcedony Gangue
Opal Gangue

Alteration

  • (Local) Silicification; Hydrothermal Alteration

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Paleocene
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -116.62705, 41.05323
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description N Trending Syncline 1500 Ft Wide
Type of structure Local
Structure description Minor Drag Folds Along Steep Normal Faults

Ore body information

  • General form BLANKET
    Strike NORTHERLY
    Dip EAST AND WEST
    Plunge direction N - S
    Thickness 1.22M
    Length 243.84M
    Width 182.88M

Controls for ore emplacement

  • Opalite (Disseminated)

Comments on the geologic information

  • PRE - TERTIARY QUARTZITE AND CHERT NEARLY EVERYWHERE MANTLED BY TERT. VOLCANICS. MIOCENE RHYOLITE AND ANDESITE FLOWS AND TUFF TILTED, BEVELLED, OVERLAIN BY FLAT - LYING RHYOLITIC TUFFS. ; GEOL.DESC: OPALIZED RHYOLITIC ASH OVERLIES CHALCEDONIC OBSIDIAN ; REG.COM: BLANKET DEPOSIT OCCUPIES THE WARPED TROUGH OF THE SYNCLINE

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1931
Year of first production 1940
Production years 1940, 1942-1944

Mining district

District name Ivanhoe District

Ownership information

  • Type Operator
    Owner R. O. Camozzi
    First year 1943
  • Type Owner
    Owner Mrs. Elfrida Pangborn

Production statistics

  • Year 1957
    Period To 1957
    Material HG
    Accuracy Estimate
    Description Cp_Grade: ^2-5 Lb/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Mercury Mercury 1581g/mt

Comments on the reserve resource information

  • ITEM 1 AS OF 1944.

Workings at the site

  • Type of workings Surface/Underground
    Area 0.701HA
    Overall depth 22.86M
    Overall length 121.92M
    Overall width 60.96M

Comments on the workings information

  • WORKINGS AS OF 1944 WERE UNDERGROUND TO 75 FT. AND AN OPEN CUT. LAST OPERATED 1944. UNDERGROUND, ORE WAS MINED BY SLUSHER METHOD

Comments on development

  • ONE 60 TON ROTARY, ONE 40 TON ROTARY (1943)

Reference information

Bibliographic references

  • Deposit

    BAILEY, E. H., U. S. GEOLOGICAL SURVEY, PERSONAL FILES

  • Deposit

    BAILEY AND PHOENIX, 1944, QUICKSILVER DEPOSITS IN NEVADA: NBMG BULL. 41

  • Deposit

    GRANGER, ET AL, 1957, GEOLOGY AND MINERAL RESOURCES OF ELKO COUNTY, NEVADA: NBMG BULL. 54

  • Deposit

    HOLMES, 1965, MERCURY IN NEVADA: IN USBM IC 8252

  • Production

    USBM UNPUB DATA

General comments

Subject category Comment text
Deposit BLANKET DEPOSIT OCCUPIES 1500 FT WIDE N - TRENDING SYNCLINE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1973 Bergquist, Joel R. 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 Nevada resources

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