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Brown Prospect.

Past Producer in Pima county in Arizona, United States with commodity Tungsten
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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. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Production statistics
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10039474
MRDS ID M050136
Record type Site
Current site name Brown Prospect.
Alternate or previous names Big Juanita Group
Related records 10162327

Geographic coordinates

Geographic coordinates: -111.66764, 31.91456 (WGS84)
Elevation 1036
Relative position ABOUT 3/4 MILE SE OF SAN JUAN SPRING

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

San Juan Spring(quadrangle 1:24,000 scale)

Sells(quadrangle 1:100,000 scale)

Nogales(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

San Simon Wash(hydrologic unit)

Rio Sonoyta(hydrologic accounting unit)

Sonora(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

BIA(Federal land areas administered by BIA)

Geographic areas

Country State County
United States Arizona Pima

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 17S 07E 29,30 Arizona

Comments on the location information

  • UNSURVEYED; LOCATION PROJECTED ON SKETCH MAP BY USBM

Commodities

Commodity Importance
Tungsten Critical Primary

Materials information

Materials Type of material
Scheelite Ore
Epidote Gangue
Garnet Gangue
Zoisite Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite

Nearby scientific data

(1) -111.66764, 31.91456
ListMap

Economic information

Controls for ore emplacement

  • Northwest Trending Fracture Zone

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1954
Discoverer Vance J. Brown

Production statistics

  • Year 1957
    Period 1954-1957
    Material ORE W
    Accuracy Estimate
    Description Cp_Grade: ^Produced 50 Lbs Of 62% W-Conc.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Tungsten Tungsten 62wt-pct

Comments on the workings information

  • ONE BULLDOZER CUT AND 4 PITS OVER A DISTANCE OF 150 FT.

Reference information

Bibliographic references

  • Deposit

    DALE ETAL, 1960, TUNGSTEN DEPOSITS... USBM RI 5650

  • Deposit

    1957 RECON USBM RI5650

  • Deposit

    DALE, STEWART, AND MCKINNEY, 1960, TUNGSTEN DEPOSITS OF COCHISE, PIMA, AND SANTA CRUZ, COUNTIES: USBM RI 5650

  • Production

    DALE ETAL 1960, USBM RI 5650

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1972 Johnson, Maureen G. 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 Arizona resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.