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  3. Mineral Resource Data System (MRDS)

Duffy Property

Occurrence in Placer 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. Commodities
  6. Nearby scientific data
  7. Economic information about the deposit and operations
  8. Links to other databases
  9. Bibliographic references
  10. Reporter information

Geologic information

Identification information

Deposit ID 10032083
MRDS ID M012263
Record type Site
Current site name Duffy Property

Geographic coordinates

Point of reference Centroid
Geographic coordinates: -120.71121, 39.06016 (WGS84)
Relative position Original record had no coordinates, so this was plotted to the middle of the state/county area.

Site location context

Political divisions (FIPS codes)

Placer(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Michigan Bluff(quadrangle 1:24,000 scale)

Truckee(quadrangle 1:100,000 scale)

Chico(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

North Fork American(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Federal lands

Tahoe National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States California Placer

Commodities

Commodity Importance
Gold Primary

Nearby scientific data

Centroid (1) -120.71121, 39.06016
ListMap

Economic information

Comments on the geologic information

  • GEOL.DESC: GEORGE L. DUFFY CONTROLLED ABOUT 18 MILES OF MINERAL RIGHTS ON MIDDLE FORK OF AMERICAN RIVER EITHER BY OPTION ON PATENTED GROUND OR BY SPECIAL USE PERMIT FROM USFS. HOLDINGS WERE FOR A PROPOSED DREDGING PROJECT TO EXTEND FROM RUCK-A CHUCKY DAM SITE (24-13N-9E) TO MOUTH OF RUBISON RIVER (3-13N-11E) SAMPLES NEAR SECS. 5, 6, 13N, 11E HAD AVE. GOLD VALUE OF 60? CU. YD. ($35.00 OZ.) OTHER SAMPLING GAVE 32? CU. YD.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Reference information

Bibliographic references

  • Deposit

    DOM BULL. 135, P. 271-2

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-73 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.