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  3. Mineral Resource Data System (MRDS)

Morning Glory

Past Producer in Tuolumne county in California, United States with commodities Gold, Lead
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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. Land status
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10105956
MRDS ID W026072
Record type Site
Current site name Morning Glory
Related records 10287311

Geographic coordinates

Geographic coordinates: -120.18377, 38.02909 (WGS84)
Elevation 853
Relative position ABOUT 3 MILES S.E. OF TWAIN HARTE

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 002N 016E 14 California

Commodities

Commodity Importance
Gold Primary
Lead Tertiary

Materials information

Materials Type of material
Galena Ore
Gold Ore
Pyrite Ore

Host and associated rocks

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

Nearby scientific data

(1) -120.18377, 38.02909
ListMap

Economic information

Ore body information

  • Strike N 20 W
    Dip 24 E

Comments on the geologic information

  • GEOL.DESC: VEIN VARIES IN THICKNESS FROM 6 INCHES TO 2 FT; FREE GOLD OCCURS IN RIBBON QUARTZ ON THE VEIN. WORKINGS OF MINE ARE ENCLOSED IN GREENISH DIKE ROCK WHICH INTRUDES THE COUNTRY ROCK.

Economic information about the deposit and operations

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

Land status

Ownership category Private

Comments on the workings information

  • INCLINED SHAFT FOLLOWS DIP OF VEIN, 140 FT. IN DIKE ROCK; SHORT DRIFTS FROM SHAFT.

Reference information

Bibliographic references

  • Deposit

    LOGAN, C.A., 1928 , MINES AND MIN. RES. OF TUOLUMNE COUNTY, CAL: CDM REPT. 24 , P. 19

General comments

Subject category Comment text
Deposit NO OTHER INFORMATION FOUND.

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.