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  3. Mineral Resource Data System (MRDS)

Alpine Union Consolidated

Occurrence 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. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Ownership information
  10. Links to other databases
  11. Bibliographic references
  12. General comments
  13. Reporter information

Geologic information

Identification information

Deposit ID 10092139
MRDS ID M007957
Record type Site
Current site name Alpine Union Consolidated

Geographic coordinates

Point of reference Centroid
Geographic coordinates: -120.86837, 38.89053 (WGS84)
Relative position Original record had no geographic coordinates; these coordinates were derived from the PLSS description provided.

Site location context

Political divisions (FIPS codes)

El Dorado(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Georgetown(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 012N 010E 15,16 California

Commodities

Commodity Importance
Gold Primary

Nearby scientific data

Centroid (1) -120.86837, 38.89053
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No
Discovery year 1865

Ownership information

  • Type Operator
    Owner Elizabeth F. Burks

Comments on the production information

  • ORIGINALLY WORKED IN LATE 1860'S. STAMP MILL IN OPERATION ON PROPERTY IN 1888. ACTIVE AROUND 1902 AND AGAIN ABOUT 1912. FROM 1933-38 A TOTAL OF $434, 665 WAS PRODUCED FROM 64,349 TONS OF ORE.

Comments on the workings information

  • A 400-FT. SHAFT WITH 5 LEVELS AND A 430-FT. SUBLEVEL.

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. MINES & GEOL. V. 52, NO. 4, PP. 405-6, 484; V. 34, NO. 3, P. 258

General comments

Subject category Comment text
Deposit Discovery Year: 1860'S
Deposit ONLY MINOR AMOUNTS OF SULFIDES ARE PRESENT. COUNTRY ROCK IS AMPHIBOLITE. HOLDINGS OF 180 ACRES.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-72 Gere, W. 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.