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

Sugar Loaf

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 10029659
MRDS ID M007341
Record type Site
Current site name Sugar Loaf

Geographic coordinates

Point of reference Centroid
Geographic coordinates: -120.93816, 38.56423 (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

Latrobe(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)

Geographic areas

Country State County
United States California El Dorado

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 008N 009E 01,12 California

Commodities

Commodity Importance
Gold Primary

Nearby scientific data

Centroid (1) -120.93816, 38.56423
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Ownership information

  • Type Operator
    Owner Sugar Loaf Mining Co.

Comments on the production information

  • FIRST WORKED DURING EARLY DAYS OF THE GOLD RUSH; ACTIVE AGAIN IN 1880'S. PROSPECTED DURING EARLY 1920'S. SHAFT WAS SUNK DURING EARLY 1930'S AND SOME HIGH-GRADE ORE WAS MINED. SINCE 1954 MINE HAS BEEN OPERATED INTERMITTENTLY BY BUTLER MNG. & DEV. CO. AND SOME HIGH GRADE ORE HAS BEEN SHIPPED.

Comments on the workings information

  • OPEN CUTS IN EARLY DAYS OF OPERATION; NOW WORKED BY 175-FT. INCLINED SHAFT WITH 3 LEVELS.

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. MINES & GEOL. V. 52, NO. 4, PP. 426, 534, AND PL. 10; V. 34, NO. 3, PL. II

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.

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.