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  3. Mineral Resource Data System (MRDS)

Lost Treasure

Past Producer in Sierra 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. Materials information
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Workings at the site
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10086663
MRDS ID M021701
Record type Site
Current site name Lost Treasure
Alternate or previous names Comet
Related records 10262228

Geographic coordinates

Geographic coordinates: -120.87964, 39.50071 (WGS84)
Relative position 4 MI. SSW OF DOWNIEVILLE

Site location context

Political divisions (FIPS codes)

Sierra(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Goodyears Bar(quadrangle 1:24,000 scale)

Portola(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 Sierra

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 019N 010E 20 California

Commodities

Commodity Importance
Gold Primary

Comments on the commodity information

  • GOLD IN NEAR SURFACE OXIDISED ORE

Materials information

Materials Type of material
Gold Ore
Pyrite Ore
Quartz Gangue

Economic information

Ore body information

  • Strike WNW
    Dip 45 S
    Thickness 2.44M

Comments on the geologic information

  • 2 VEINS; LOST TREASURE 400 FT. E OF COMET VEIN. LOST TREASURE IS A FISSURE VEIN FILLED W QTZ., PORPHYRY. BOTH WALLS PORPHYRY. 1 - 8 FT. THICK. THE COMET IS A FISSURE VEIN CARRYING W PORPHYRY WALLS, 2 FT. THICK, STRIKES E, DIPS 45 S.

Economic information about the deposit and operations

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

Workings at the site

  • Type of workings Surface/Underground
    Area 16.188HA
    Overall depth 12.19M
    Overall length 457.2M

Comments on the workings information

  • 70 FT. ADIT ON LOST TREASURE VEIN; OPEN CUTS 12 FT. SHAFT ON COMET VEIN.

Reference information

Bibliographic references

  • Deposit

    AVERILL, C. V., 1942 , MINES AND MINERAL RESOURCES OF SIERRA CO.: CDM CALIF. JOUR. MINES AND GEOL., VOL. 38 , NO. 1 , P. 59 .

  • Deposit

    LOGAN, C. A., 1929 , SIERRA CO.: CDMM 25TH REPORT STATE MINERALOGIST, APRIL, P. 179 .

  • Deposit

    MACBOYLE, E., 1920 , MINES AND MINERAL RESOURCES SIERRA CO.: CSMB 16TH REPORT STATE MINERALOGIST, DEC. 1918 , P. 99 , 100 .

General comments

Subject category Comment text
Deposit VEINS

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1979 Hayden, F. (Albers, J.) 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.