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

Gorham Prospect

Occurrence in Calaveras county in California, United States with commodity Manganese
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. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10092002
MRDS ID M006238
Record type Site
Current site name Gorham Prospect
Related records 10186905

Geographic coordinates

Geographic coordinates: -120.58461, 37.93491 (WGS84)
Relative position 6 MI SE OF COPPEROPOLIS

Site location context

Political divisions (FIPS codes)

Calaveras(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

New Melones Dam(quadrangle 1:24,000 scale)

Oakdale(quadrangle 1:100,000 scale)

San Jose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Stanislaus(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Calaveras

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 001N 013E 18 California

Comments on the location information

  • LOCATED IN SE 1/4 SECTION 18

Commodities

Commodity Importance
Manganese Critical Tertiary

Materials information

Materials Type of material
Rhodonite Ore

Analytical data

Result ORE GRADE 30 TO 38 PERCENT MANGANESE

Nearby scientific data

(1) -120.58461, 37.93491
ListMap

Economic information

Ore body information

  • Thickness 0.46M
    Length 15.24M

Comments on the geologic information

  • GEOL.DESC: ORE BODY CONSISTS OF UNOXIDIZED AND PARTIALLY OXIDIZED RHODONITE. DEPOSIT IS 50 FT. LONG, 1.5 FT. WIDE

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Reference information

Bibliographic references

  • Deposit

    CALIF. B. 152, P.43; B. 125, P.107; B. 145, PL. 2

  • Deposit

    EC. MINERAL MAP NO.5, 1943

  • Deposit

    USBM R.I. 5579, P. 22

  • Deposit

    CALIF. COUNTY REPT. NO. 2 , P. 212 AND PL. D; USGS MR-23 ; MAP GP - 561

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1972 Gere, W. U.S. Geological Survey
Updater 01-APR-1977 Von Dohlen, E.; 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.