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  3. Mineral Resource Data System (MRDS)

Alpha Diggings

Occurrence in Nevada 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. Links to other databases
  10. Bibliographic references
  11. General comments
  12. Reporter information

Geologic information

Identification information

Deposit ID 10031958
MRDS ID M011871
Record type Site
Current site name Alpha Diggings

Geographic coordinates

Geographic coordinates: -120.78436, 39.336 (WGS84)
Relative position E1/2 SW1/4, W1/2 SE1/4

Site location context

Political divisions (FIPS codes)

Nevada(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Washington(quadrangle 1:24,000 scale)

Truckee(quadrangle 1:100,000 scale)

Chico(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Yuba(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 Nevada

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 017N 011E 18 California

Commodities

Commodity Importance
Gold Primary

Nearby scientific data

(1) -120.78436, 39.336
ListMap

Economic information

Comments on the geologic information

  • GEOL.DESC: PLACER - NEOCENE GRAVELS - ABOUT 75 ACRES OF GRAVEL PRESERVED LINDGREN), THE PEBBLES CONSISTING CHIEFLY OF QUARTZ, QUARTZITE, AND HARD CONGLOMERATE***BANKS ARE 90 FT. HIGH INCLUDING 20 FT. OF CLAY AT THE TOP.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Reference information

Bibliographic references

  • Deposit

    USGS FOLIO 66, P. 9 AND EC. GEOL. SHEET

General comments

Subject category Comment text
Deposit ABOUT 5,000,000 CU YDS OF MATERIAL HAD BEEN REMOVED WHEN EXAMINED BY LINDGREN AND ABOUT A QUARTER OF THAT AMOUNT REMAINED.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1973 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.