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Cowden Mine

Past Producer in Humboldt county in Nevada, United States with commodities Gold, Copper
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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. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Ownership information
  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 10044997
MRDS ID M232648
Record type Site
Current site name Cowden Mine
Alternate or previous names NBMG Sample Site 2981

Geographic coordinates

Geographic coordinates: -118.67212, 41.97487 (WGS84)
Elevation 1394
Relative position 2 MILES SW OF DENIO

Site location context

Political divisions (FIPS codes)

Humboldt(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Denio(quadrangle 1:24,000 scale)

Denio(quadrangle 1:100,000 scale)

Vya(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alvord Lake(hydrologic unit)

Oregon Closed Basins(hydrologic accounting unit)

Oregon Closed Basins(hydrologic subregion)

Pacific Northwest(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 047N 030E 06 Nevada

Comments on the location information

  • S 1/2 OF S 1/2 OF SEC 6; E SLOPE PUEBLO MTS.

Commodities

Commodity Importance
Gold Primary
Copper Primary

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Alteration

  • (Local) Yes

Analytical data

Result SAMPLE 2981 CONTAINS 10 % FE, 2 % CA, 0.3 % TI, 1000 PPM MN, 50 PPM B, 200 PPM BA, 1 PPM BE, 20 PPM CO, 20 PPM CR, +20000 PPM CU, 7 PPM MO, 20 PPM NI, 20 PPM SC, 700 PPM SR, 300 PPM V, 20 PPM Y, AND 20 PPM ZR.

Mineral occurrence model information

Model code 273
USGS model code 36a
Deposit model name Low-sulfide Au-quartz vein
Mark3 model number 27

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt

Nearby scientific data

(1) -118.67212, 41.97487
ListMap

Economic information

Ore body information

  • General form TABULAR
    Thickness 1.83M

Controls for ore emplacement

  • Veins; Some Fault-Control

Comments on the geologic information

  • VEINS ARE 2 TO 6 FEET WIDE; VEIN FILLING IS ALTERED ANDESITE AND QUARTZ

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1894
Discoverer Robert Denio

Mining district

District name Warm Springs District

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Operator
    Owner Nevada King Mining Co., (Early 1900'S)
  • Type Owner
    Owner Nelson, Lee
    First year 1984

Workings at the site

  • Type of workings Underground
    Length 914.4M

Comments on the workings information

  • 7 ADITS (UP TO 490 FEET LONG) AND OTHER WORKINGS.

Comments on development

  • NO ACTIVITY IN 1984.

Reference information

Bibliographic references

  • Deposit

    VANDERBURG, W.O., 1938, RECONNAISSANCE OF MINING DISTRICTS IN HUMBOLDT COUNTY, NEVADA: USBM INF. CIRC 6995

  • Production

    VANDERBURG, W. O., 1938.

General comments

Subject category Comment text
Deposit MR. JACK DAVIS WHO LIVES AT THE MINE (1984) REPORTED THAT THE ORE WAS IN NARROW SEAMS OPENING INTO POCKETS OR VUGS CONTAINING GOLD. MANY OF THE SEAMS ARE FRACTURE-FILLING OR VEINLETS, BUT OTHERS ARE CLEARLY FAULT CONTROLLED AND PROBABLY GENETICALLY RELATED TO THE GRANITES. SAMPLE 2981 WAS FROM A NEWER EXPOSED PORTION OF THE MINE IN WHAT MUST BE A MINOR VEIN SYSTEM.
Deposit A GROUP OF 7 CLAIMS OWNED BY THE DEFENBAUGHS IN THE 1930'S. IT WAS DISCOVERED IN 1894 BY ROBERT DENIO, AFTER WHICH IT WAS ACQUIRED BY J. COWDEN & ASSOC. WHO ORGANIZED THE NEVADA KING MINING CO., WHO BUILT A MILL, TREATED ORE & DID CONSIDERABLE DEVELOPMENT WORK. DEVELOPMENT CONSISTED OF 7 ADITS (UP TO 490 FT. LONG) AND OTHER WORKINGS TOTALLING SEVERAL THOUSAND FEET. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT; 3 FIELD OBSERV

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1981 La Pointe, D.D. Nevada Bureau of Mines and Geology
Updater 01-MAY-1987 La Pointe, D.D. 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.