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  3. Mineral Resource Data System (MRDS)

River Hill Group

Past Producer in El Dorado county in California, United States with commodity Gold
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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. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  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 10034920
MRDS ID M022000
Record type Site
Current site name River Hill Group
Alternate or previous names Bell, Gentle Annie Hall Consolidated, Lucky Star, Lyon, New Era
Related records 10139587

Geographic coordinates

Geographic coordinates: -120.8088, 38.75212 (WGS84)
Elevation 610
Relative position 1 1/2 MI N OF PLACERVILLE

Site location context

Political divisions (FIPS codes)

El Dorado(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Garden Valley(quadrangle 1:24,000 scale)

Placerville(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

South Fork American(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California El Dorado

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 010N;011N 011E;010E 06;36 California

Comments on the location information

  • UTM

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate

Nearby scientific data

(1) -120.8088, 38.75212
ListMap

Economic information

Ore body information

  • Strike NW
    Dip NE
    Depth to top 0M

Comments on the geologic information

  • 5 PARALLEL VEINS IN SLATE ORE SHOOTS UP TO 150 FT WIDE AND 30 FT THICK

Economic information about the deposit and operations

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

Comments on the production information

  • ACTIVE 1890 - 1906 W GRADE $2.50 - $4.80/TON. CONSIDERABLE PRODUCTION BUT NO FIGURE GIVEN.

Workings at the site

  • Type of workings Underground
    Area 72.037HA

Comments on the workings information

  • 600 AND 1550 FT INCLINED SHAFTS, 2400 FT ADIT, MUCH DRIFTING.

Reference information

Bibliographic references

  • Deposit

    CLARK, W. B., AND CARLSON, D. W., 1956 , MINES AND MINERAL RESOURCES OF EL DORADO CO., CALIF.: CALIF. JOUR. OF MINES AND GEOL., VOL 52 , NO. 4 , PG 529 .

  • Deposit

    LOGAN, C. A., 1927 , EL DORADO CO.: CALIF. STATE MINING BUR., REPT. 22 STATE MINERALOGIST, NO. 4 , P. 433 .

  • Production

    CLARK AND CARLSON, 1956

General comments

Subject category Comment text
Deposit VEIN

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1979 Hayden, F. (Albers, J.) U.S. Geological Survey

Beyond USGS

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

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.