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Round Top

Past Producer in Alpine county in California, United States with commodities Gold, Silver, Copper
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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. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10101060
MRDS ID C004726
Record type Site
Current site name Round Top
Related records 10211387

Geographic coordinates

Geographic coordinates: -120.00239, 38.67519 (WGS84)
Elevation 2682
Relative position 2 MI SE OF CAPLES LAKE

Site location context

Political divisions (FIPS codes)

Alpine(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Caples Lake(quadrangle 1:24,000 scale)

Placerville(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

South Fork American(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Federal lands

Eldorado National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Mokelumne Wilderness(Wilderness)

Wilderness FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States California Alpine

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 010N 018E 28,33 California

Comments on the location information

  • UTM EST. SE 1/4 28 , NE 1/4 33

Commodities

Commodity Importance
Gold Primary
Silver Secondary
Copper Secondary

Materials information

Materials Type of material
Quartz Gangue

Analytical data

Result ASSAY VALUES TO $100/TON REPORTED

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -120.00239, 38.67519
ListMap

Economic information

Ore body information

  • Thickness 0.91M
    Depth to top 0M

Comments on the geologic information

  • VEIN ALSO CONTAINS CALINE. ELEV 8400 - 9200 FT

Economic information about the deposit and operations

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

Comments on the production information

  • NO OTHER PRODUCTION RECORD FOUND.

Comments on the workings information

  • SEVERAL SMALL HOLES

Reference information

Bibliographic references

  • Deposit

    USGS PYRAMID PEAK FOLIO, NO. 31 , 1896

  • Production

    CLARK, 1977

General comments

Subject category Comment text
Deposit VEIN, 1 - 3 FT THICK

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-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.