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Hasloe

Past Producer in Mariposa county in California, United States with commodities Gold, Silver, Copper, 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. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Ownership information
  14. Production statistics
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10030977
MRDS ID M009495
Record type Site
Current site name Hasloe
Alternate or previous names Funk, Coward, Hasloe & Centuary, Gentry Gulch
Related records 10212395

Geographic coordinates

Geographic coordinates: -120.04905, 37.69798 (WGS84)
Elevation 640
Relative position 5 1/2 MILES SE OF GREELEY HILL

Site location context

Political divisions (FIPS codes)

Mariposa(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Buckhorn Peak(quadrangle 1:24,000 scale)

Oakdale(quadrangle 1:100,000 scale)

San Jose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Merced(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 Mariposa

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 003S 017E 01,02 California

Commodities

Commodity Importance
Gold Primary
Silver Secondary
Copper Secondary
Lead Secondary

Materials information

Materials Type of material
Galena Ore
Gold Ore
Tetrahedrite Ore
Quartz Gangue

Host and associated rocks

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

Nearby scientific data

(1) -120.04905, 37.69798
ListMap

Economic information

Ore body information

  • General form VEIN AVERAGES 30 INCHES WIDE, BUT VARIES BETWEEN 6 INCHES AND 5 FT
    Strike N 50 W
    Dip 30 NE
    Thickness 1.52M
    Depth to top 0M

Controls for ore emplacement

  • Most Of The Gold Occurs Near The Vein Border, Particularly On The Footwall Side.

Comments on the geologic information

  • GEOL.DESC: DIORITE DIKE HAS INTRUDED FOR 200 FT. ALONG THE VEIN FISSURE IN THE VICINITY OF THE WEST ORE SHOOT.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1857
Production years 1857 - 1948

Ownership information

  • Type Operator
    Owner Walter D. Mclean Et Al.

Production statistics

  • Year 1948
    Period Through 1948
    Material AG
    Accuracy Accurate
    Description Ap_Grade: ^14.16 Oz Ag/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Silver Silver 400g/mt

Comments on the production information

  • WORKED BY VARIOUS OPERATORS FROM 1857 TO 1948. MINE WAS TO BE REOPENED IN 1956. PRODUCTION UP TO NOV. 1, 1873 WAS SAID TO BE $200,000 BUT PREVIOUS REPORTS SAID PRODUCTION WAS AT $600,000 UP TO 1866. OPERATIONS 1880-1890 SAID TO HAVE PRODUCED OVER $3,000,000. U.S. BUREAU OF MINES REPORTS 3284 TONS OF ORE TAKEN FROM MINE BETWEEN 1910-1948 YIELDED 1703.68 OZ. GOLD AND 232 OZ. SILVER, SLIGHTLY MORE THAN $30,000. COPPER PRODUCTION 0-100,000 LBS. - D.O.M. BULL. 144, PT. 3, 1948, P. 267.

Workings at the site

  • Type of workings Underground
    Length 533.4M
    Overall depth 164.59M

Comments on the workings information

  • 500 FT. INCLINED SHAFT AND A 700-FT. DRIFT ADIT. FROM THE SHAFT THERE ARE 1750 FT. OF DRIFTS ON 6 LEVELS.

Reference information

Bibliographic references

  • Deposit

    BOWEN, O. E., JR., GRAY, C. H., JR., 1957 , MINES AND MINERAL DEPOSITS OF MARIPOSA COUNTY, CALIFORNIA: CALIF. JOUR. MINES AND GEOLOGY, V. 53 , NOS. 1 AND 2 , PP. 106 - 108 , 268 .

  • Deposit

    CASTELLO, W. O., 1921 , MINES AND MINERAL RESOURCES OF MARIPOSA COUNTY IN SEVENTEENTH REPORT OF THE STATE GEOLOGIST: CALIFORNIA STATE MINING BUREAU, P. 118 .

  • Deposit

    ERIC, J. C., 1948 , TABULATION OF COPPER DEPOSITS IN CALIFORNIA IN COPPER IN CALIFORNIA: CALIFORNIA DIVISION OF MINES BULLETIN 144 , P. 267 .

  • Deposit

    AUBURY, L. E., 1904 , REGISTER OF MINES AND MINERALS, MARIPOSA COUNTY CALIFORNIA: CALIFORNIA STATE MINING BUREAU, P. 11 .

  • Production

    BOWEN & GRAY, 1957

General comments

Subject category Comment text
Deposit VEIN IS MILKY QUARTZ WITH WALL-ROCK GOUGE AND OCCASIONAL PARALLEL INCLUSIONS OF SLATE.
Deposit TWO PATENTED CLAIMS OF 41.12 ACRES AND TWO UNPATENTED CLAIMS. ORE MINERALS ARE NATIVE GOLD, TETRAHEDRITE AND A LITTLE GALENA AND ARSENOPYRITE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1973 Gere, W. U.S. Geological Survey
Updater 01-JAN-1979 Bowman, J. And Albers, J. 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.