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Ryan Group

Past Producer in Tuolumne county in California, United States with commodities Gold, Silver
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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. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10077974
MRDS ID W026067
Record type Site
Current site name Ryan Group
Related records 10287454

Geographic coordinates

Geographic coordinates: -120.16543, 38.06103 (WGS84)
Elevation 1311
Relative position MORE THAN 1 1/2 MILES E. OF SUGAR PINE

Site location context

Political divisions (FIPS codes)

Tuolumne(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Twain Harte(quadrangle 1:24,000 scale)

San Andreas(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Tuolumne(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Federal lands

Stanislaus 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 Tuolumne

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 003N 016E 36 California

Commodities

Commodity Importance
Gold Primary
Silver Secondary

Materials information

Materials Type of material
Gold Ore
Silver Ore

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -120.16543, 38.06103
ListMap

Economic information

Ore body information

  • Strike N
    Dip 30 E

Economic information about the deposit and operations

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

Comments on the production information

  • ONLY IMPORTANT PRODUCTION RECORDED IN 1940 WHEN 1700 TONS OF ORE PRODUCED

Workings at the site

  • Type of workings Underground
    Area 28.329HA

Comments on the workings information

  • SHAFT 400 FT

Reference information

Bibliographic references

  • Deposit

    LOGAN, C.A., 1949 , MINES AND MIN. RES. OF TUOLUMNE COUNTY: CDMG REPT 45 , P. 71

General comments

Subject category Comment text
Deposit THIS GROUP INCLUDES GREEN CONSOLIDATED, RYAN CLAIMS, AMONG OTHER VARIOUS LODE AND PLACER CLAIMS. LAST WORK ( AROUND 1940 ) DONE ON GREEN. OPERATIONS CARRIED ON IRREGULARLY SINCE 1928 .

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1978 Albers, J.; Tatkin, T. 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.