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  3. Mineral Resource Data System (MRDS)

Church

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. Reporter information

Geologic information

Identification information

Deposit ID 10092078
MRDS ID M007689
Record type Site
Current site name Church

Geographic coordinates

Geographic coordinates: -120.8238, 38.64684 (WGS84)
Elevation 361

Site location context

Political divisions (FIPS codes)

El Dorado(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Placerville(quadrangle 1:24,000 scale)

Placerville(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Cosumnes(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Federal lands

USBR(Federal land areas administered by USBR)

Geographic areas

Country State County
United States California El Dorado

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 009N 010E 12 California

Commodities

Commodity Importance
Gold Primary

Nearby scientific data

(1) -120.8238, 38.64684
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Ownership information

  • Type Operator
    Owner Madre De Oro Gold Mines Co.

Comments on the production information

  • FIRST WORKED ON SMALL SCALE IN 1850'S; CONSOLIDATED WITH UNION MINE IN 1860'S BUT LATER WORKED SEPARATELY; WORKED EXTENSIVELY 1880'S AND 1890'S; CLOSED DOWN IN 1907. REOPENED IN 1941 AND RECORDED PRODUCTION FOR THAT YEAR WAS 169 OZ. GOLD FROM 496 TONS OF ORE MILLED. IDLE SINCE 1942. BEST ORE WAS FROM KIDNEY (MIDDLE) VEIN, WHICH WAS AS HIGH IN GRADE AS $30 PER TON. THE WEST VEIN CONTAINED ONLY LOW-GRADE MATERIAL. SULFIDES FORMED 1 1/2 TO 2 1/4 PERCENT OF THE ORE AND ASSAYED AS HIGH AS $140 PER TON. PROBABLY INCLUDES THE GOLDEN FLEECE AND EL DORADO CLAIMS - CONTAINS 80 ACRES.

Comments on the workings information

  • 1200-FT. VERTICAL SHAFT WITH CROSSCUTS ON VEIN; 10 LEVELS; WINZE; DRIFTS; SURFACE PLANT EXTENSIVE.

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. MINES & GEOL. V. 52, NO. 4, P. 412-13, 493

  • Deposit

    CJM&G V. 34, NO. 3, P. 260, PL. II

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1972 Gere, W. 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.