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  3. Mineral Resource Data System (MRDS)

Milkmaid

Past Producer in Shasta county in California, United States with commodities Gold, Lead, Zinc
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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. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10034459
MRDS ID M021241
Record type Site
Current site name Milkmaid
Alternate or previous names Milkmain and Franklin

Geographic coordinates

Geographic coordinates: -122.66971, 40.71874 (WGS84)
Relative position ABOUT 3 MILES N.W. OF FRENCH GULCH ADJACENT OF FRANKLIN MINE.

Site location context

Political divisions (FIPS codes)

Shasta(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

French Gulch(quadrangle 1:24,000 scale)

Redding(quadrangle 1:100,000 scale)

Redding(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Shasta

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 033N 007W 17 California

Comments on the location information

  • COORDINATES ACCURATE; SECTION PROJECTED.

Commodities

Commodity Importance
Gold Primary
Lead Secondary
Zinc Critical Secondary

Comments on the commodity information

  • BEST ORE FROM VEINS IN GRANITIC PORPHYRY CLOSE TO SLATE CONTACT.

Materials information

Materials Type of material
Gold Ore
Pyrite Ore
Calcite Gangue
Quartz Gangue

Analytical data

Result SULFIDE ORE .75 PERCENT OF ORE WEIGHT GOLD $150 PER TON IN ASSOCIATION WITH SULFIDES, $20 TO $45 PER TON FROM MAIN VEIN.

Mineral occurrence model information

Model code 273
USGS model code 36a
Deposit model name Low-sulfide Au-quartz vein
Mark3 model number 27

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -122.66971, 40.71874
ListMap

Economic information

Ore body information

  • General form LENTICULAR
    Strike N 10 W
    Dip 80 E
    Thickness 1.22M

Controls for ore emplacement

  • Fractures

Comments on the geologic information

  • QUARTZ, GLASSY WITH VUGS AND SECONDARY MINERALS UP TO 2 CENTIMETERS. CALCITE ALSO PRESENT. ; GEOL.DESC: BOTH DIORITE AND GRANITIC PORPHYRIES INTRUDE INTO SLATE. DIORITE PORPHYRY IS APHANITIC, DARK GRAY-GREEN WITH FINE FELDSPAR PHENOCRYSTS, THICKLY SCATTERED. QUARTZ VEIN VARIES FROM A FEW INCHES TO 4 FT. ORE SHOOTS IRREGULAR AND PITCH STEEPLY SOUTH.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant Yes
Production years 1852 - 1907 AND INTERMITTANTLY TO 1926 .

Mining district

District name French Gulch

Comments on the production information

  • ONE OF OLDEST LODE GOLD PRODUCERS IN STATE. MORE THAN HALF OF PRODUCTION PRIOR TO 1907 . FIGURES INCLUDE PRODUCTION TO FRANKLIN MINE

Comments on the workings information

  • 3 LEVELS WITH 1 CROSS-CUT ADIT, 100 FT, DRIFTS 900 FT., SHAFT 200 FT.

Reference information

Bibliographic references

  • Deposit

    AVERILL, C.V., 1933 , GOLD DEPOSITS OF REDDING AND WEAVERVILLE QUADRANGLES: CDM REPT. 23 , P. 37 .

  • Deposit

    FERGUSON, H.G., 1914 . GOLD LODES OF WEAVERVILLE QUADRANGLE, CAL.: U.S. GEOLOGICAL SURVEY BULL. 540 , P 61 - 64

  • Deposit

    LOGAN, C.A., 1926 , SACRAMENTO FIELD DIVISION: CMB REPT. 22 , P. 175 - 176

  • Deposit

    LYDON, P.A. AND O'BRIEN, J.C., 1974 , MINES AND MIN. RES. OF SHASTA COUNTY, CAL.: CDMG, COUNTY REPT. 6 , 154 P.

  • Production

    LOGAN, C.A., 1926 : CMB REPT 22 , P. 175

General comments

Subject category Comment text
Deposit MILKMAID AND FRANKLIN MINES ARE 2 ADJACENT CLAIMS REPORTED IN THE LITERTURE AS BOTH SINGLE AND COMBINED HOLDINGS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1978 Tatkin, T.; Albers, John P. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

External references

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.