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

Fall Ravine

Past Producer in Placer county in California, United States with commodities Gold, Lead
Map
XML
JSON
KML
C
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. Materials information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10034880
MRDS ID M021863
Record type Site
Current site name Fall Ravine
Related records 10286135

Geographic coordinates

Geographic coordinates: -120.4863, 39.141 (WGS84)
Elevation 1829
Relative position 10 MI. NE LAST CHANCE, S SIDE OF LITTLE BALD MT.

Site location context

Political divisions (FIPS codes)

Placer(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Royal Gorge(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

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 015N 013E 14 California

Comments on the location information

  • UTM EST. SE 1/4 , SE 1/4

Commodities

Commodity Importance
Gold Primary
Lead Secondary

Materials information

Materials Type of material
Galena Ore
Gold Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate

Nearby scientific data

(1) -120.4863, 39.141
ListMap

Economic information

Ore body information

  • Strike NW
    Dip 60 NE

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Last Chance

Land status

Ownership category National Forest

Workings at the site

  • Type of workings Underground
    Length 198.12M
    Overall depth 106.68M

Comments on the workings information

  • SHAFT, TUNNEL, DRIFTING

Reference information

Bibliographic references

  • Deposit

    CRAWFORD, J. J., 1894 , GOLD-PLACER COUNTY: REPORT 12 OF THE STATE MINERALOGIST, CALIFORNIA STATE MINING BUREAU, P. 208 .

  • Deposit

    WARING, CLARENCE A., 1917 , PLACER COUNTY: REPORT 15 OF THE STATE MINERALOGIST, CALIFORNIA STATE MINING BUREAU, P. 339 .

General comments

Subject category Comment text
Deposit VEIN, 3 FT. THICK W/4 % SULFIDES

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1979 Nelson, Scott C. (Albers, John, P.) 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.