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  3. Mineral Resource Data System (MRDS)

International

Past Producer 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. 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. Mining district
  12. Ownership information
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10007726
MRDS ID C012251
Record type Site
Current site name International
Alternate or previous names International Quartz Mine
Related records 10115680

Geographic coordinates

Geographic coordinates: -120.91242, 38.98739 (WGS84)
Elevation 610
Relative position 7 MI. SW FOREST HILL

Site location context

Political divisions (FIPS codes)

Placer(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Greenwood(quadrangle 1:24,000 scale)

Placerville(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

North Fork American(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Placer

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 013N 009E 12 California

Comments on the location information

  • UTM EST. SE 1/4

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Analytical data

Result EST. ASSAYS $3.75 - $15 AU/TON

Nearby scientific data

(1) -120.91242, 38.98739
ListMap

Economic information

Ore body information

  • Thickness 15.24M

Economic information about the deposit and operations

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

Mining district

District name Forest Hill

Ownership information

  • Type Owner
    Owner Patrick Mcinnis
    First year 1935

Reference information

Bibliographic references

  • Deposit

    WARING, CLARENCE A., 1917 , PLACER COUNTY: REPORT 15 OF THE STATE MINERALOGIST, CALIFORNIA STATE MINING BUREAU, P. 342

General comments

Subject category Comment text
Deposit VEIN ?, AU FOUND ALONG FOOTWALL OF 50 FT. THICK PORPHYRY DIKE

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.