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  3. Mineral Resource Data System (MRDS)

First Riffles Placer Mine

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

Geologic information

Identification information

Deposit ID 10044078
MRDS ID M231401
Record type Site
Current site name First Riffles Placer Mine

Geographic coordinates

Geographic coordinates: -116.81232, 40.4363 (WGS84)
Elevation 1524
Relative position 20 MILES SSE OF TOWN OF BATTLE MOUNTAIN

Site location context

Political divisions (FIPS codes)

Lander(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Lewis(quadrangle 1:24,000 scale)

Crescent Valley(quadrangle 1:100,000 scale)

Winnemucca(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 Lander

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 030N 046E 28 Nevada

Comments on the location information

  • NEAR CONFLUENCE OF HILLTOP & MAYSVILLE CANYONS

Commodities

Commodity Importance
Gold Primary
Silver Secondary

Analytical data

Result GOLD IS ABOUT 870 FINE

Mineral occurrence model information

Model code 119
USGS model code 39a
Deposit model name Placer Au-PGE
Mark3 model number 54

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Stratigraphic age (youngest) Late Ordovician

Nearby scientific data

(1) -116.81232, 40.4363
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Roberts Mtns. Thrust At Depth

Controls for ore emplacement

  • Ore Is Just Above Bedrock

Comments on the geologic information

  • GOLD IS COARSE AND ASSOC. WITH BLACK SAND AND BARITE

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Discovery year 1914
Discoverer John Nelson

Mining district

District name Hilltop District

Land status

Ownership category Private

Comments on the workings information

  • FOUR SHALLOW SHAFTS AND A BEDROCK DRIFT

Comments on development

  • ABOUT $2000 IN PLACER GOLD WAS PRODUCED BY LESSEES FROM 1914 TO 1916

Reference information

Bibliographic references

  • Deposit

    VANDERBURG, W. O., 1938, RECONNAISSANCE OF MINING DISTRICTS IN LANDER CO., NEV: USBM INFO. CIRC. 7043

  • Deposit

    STAGER, H. K., 1977, GEOLOGY AND MINERAL DEPOSITS OF LANDER CO., NEV: NEV. BUREAU OF MINES BULL. 88, PT II

General comments

Subject category Comment text
Deposit PLACER GOLD WAS FOUND IN KRUM CANYON BY JOHN NELSON IN 1914. ABOUT $2000 IN PLACER GOLD WAS PRODUCED BY LESSEES FROM 1914 TO 1916. PROPERTY CONSISTS OF 160 ACRES BELOW CONFLUENCE OF MAYSVILLE AND HILLTOP CANYONS, PROSPECTED BY 4 SHALLOW SHAFTS AND A BEDROCK DRIFT. ; INFO.SRC : 1 PUB LIT
Deposit GOLD IS COARSE AND ASSOCIATED WITH BLACK SAND AND BARITE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1980 La Pointe, D. D. Nevada Bureau of Mines and Geology

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.