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  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Conlon

Past Producer in Nevada county in California, United States with commodities Gold, Lead
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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. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10101198
MRDS ID C010912
Record type Site
Current site name Conlon

Geographic coordinates

Geographic coordinates: -121.04103, 39.18406 (WGS84)
Elevation 884
Relative position 3 MI. SE GRASS VALLEY

Site location context

Political divisions (FIPS codes)

Nevada(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Grass Valley(quadrangle 1:24,000 scale)

Yuba City(quadrangle 1:100,000 scale)

Chico(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Bear(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Nevada

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 015N 008E 01 California

Comments on the location information

  • UTM. EST. - SW 1/4 SEC. 1

Commodities

Commodity Importance
Gold Primary
Lead Secondary

Materials information

Materials Type of material
Galena Ore
Gold Ore
Pyrite Ore
Quartz Gangue

Nearby scientific data

(1) -121.04103, 39.18406
ListMap

Economic information

Ore body information

  • Strike N
    Dip 25 - 42 W
    Depth to top 0M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Grass Valley

Comments on the production information

  • ORE VALUED $20 - $50 AU/TON. NO OTHER PRODUCTION DATA FOUND.

Workings at the site

  • Type of workings Underground
    Length 1371.6M
    Overall depth 228.6M

Comments on the workings information

  • SHAFTS & EXTENSIVE WORKINGS

Reference information

Bibliographic references

  • Deposit

    MACBOYLE, E., 1919 , MINES AND MINERAL RESOURCES OF NEVADA COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 16 , P. 146 - 147 .

  • Deposit

    HOBSON, J. B., WILTSEE, E. A., 1893 , NEVADA COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 11 , P. 283 .

  • Deposit

    JOHNSTON, W. D., 1940 , THE GOLD QUARTZ VEINS OF GRASS VALLEY, CALIFORNIA: US GEOLOGICAL SURVEY PROFESSIONAL PAPER 194 , P. 92 .

General comments

Subject category Comment text
Deposit VEIN, AVG. 26 IN. THICK
Deposit CONSISTS OF LAFAYETTE, WINDING, JEFFERSON & COMET PATENTED CLAIMS, 90 ACRES ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1979 Bowman, J. And Albers, J. 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 California resources

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