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Easter Mine

Past Producer in Pima county in Arizona, United States with commodities Tungsten, Gold, Silver, Copper, 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. Alteration
  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. Land status
  16. Ownership information
  17. Production statistics
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10039536
MRDS ID M050239
Record type Site
Current site name Easter Mine
Related records 10283437

Geographic coordinates

Geographic coordinates: -111.39402, 31.51346 (WGS84)
Elevation 1372
Relative position ABOUT 4 MILES EAST OF LOPEZ RANCH

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Wilbur Canyon(quadrangle 1:24,000 scale)

Sells(quadrangle 1:100,000 scale)

Nogales(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Rio De La Concepcion(hydrologic unit)

Rio De La Concepcion(hydrologic accounting unit)

Sonora(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

Coronado 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 Arizona Pima

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 22S 009E 15,14 SE4 (15) OF SW4 (14) Arizona

Commodities

Commodity Importance
Tungsten Critical Primary
Gold Secondary
Silver Secondary
Copper Secondary
Lead Secondary
Zinc Critical Secondary

Comments on the commodity information

  • ORIGINALLY LOCATED FOR MEAGER GOLD SHOWING.

Materials information

Materials Type of material
Scheelite Ore

Alteration

  • (Local) Hematite And Limonite Stains

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale

Nearby scientific data

(1) -111.39402, 31.51346
ListMap

Economic information

Ore body information

  • General form NARROW
    Strike N85W
    Dip STEEPLY NORTH
    Width 0.61M

Controls for ore emplacement

  • Series Of Quartz Veins

Comments on the geologic information

  • NEAR GRANITE-SEDIMENT,VOLCANICS CONTACT.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1929
Discoverer Brouse Brothers
Year of first production 1941
Year of last production 1942

Mining district

District name Easter District

Land status

Ownership category National Forest

Ownership information

  • Type Operator
    Owner Don Lieberman Enterprises, Inc.
  • Type Owner
    Owner Brouse, William J.

Production statistics

  • Year 1942
    Period 1939-1942
    Material ORE W
    Accuracy Estimate
    Description Cp_Grade: ^1.5 Oz Au/Ton, 4.5 Oz Ag/Ton, 2.3% Cu, Trace Pb
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Copper Copper 2wt-pct
    Trace Silver Silver 127g/mt
    Trace Gold Gold 42g/mt
  • Year 1952
    Material CONC W
    Accuracy Estimate
    Description Ap_Grade: ^77% Wo3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Wo3 Conc. Tungsten Tungsten 77wt-pct
  • Year 1956
    Period 1951-1956
    Material CONC W
    Accuracy Estimate
    Description Cp_Grade: ^77% Wo3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Wo3 Conc. Tungsten Tungsten 77wt-pct

Comments on the production information

  • SMALL PRODUCTION; 2700 LBS OF HIGH GRADE FLOAT FROM THE SURFACE IN 1951 OR 1952

Comments on the workings information

  • A FEW SHALLOW PITS AND TRENCHES.

Comments on development

  • OPERATORS INCLUDED J.W. BROUSE, EASTER MINING CO

Reference information

Bibliographic references

  • Deposit

    DALE AND OTHERS, 1961, TUNGSTEN DEPOSITS OF COCHISE, PIMA, AND SANTA CRUZ COUNTIES:USBM RI 5650

  • Deposit

    KEITH,S.B.,1974:ABM BULLETIN 189, P.105.

  • Deposit

    HEYLMUN, E.B., 1987, THE SAN LUIS MOUNTAINS, ARIZONA: CALIFORNIA MINING JOURNAL, V. 56, NO, 10, P. 71-75.

  • Deposit

    1957 RECON USBM RI 5650

  • Deposit

    DALE, STEWART AND MCKINNEY, 1961, TUNGSTEN DEPOSITS OF COCHISE, PIMA, AND SANTA CRUZ COUNTIES: USBM RI 5650

  • Other Database

    CIMRI

  • Production

    (8)KEITH,1974. (9)DALE,1961. HEYLMUN, 1987, P. 73.

General comments

Subject category Comment text
Deposit THIS RECORD CONTAINS INFORMATION FROM DUPLICATE RECORD D000800 WHICH HAS BEEN DELETED FROM MRDS. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Deposit SPARSE PARTICLES OF SCHEELITE, RANGING IN SIZE FROM SMALL GRAINS TO MASSES WEIGHING OVER 10 POUNDS ARE SPORADICALLY DISTRIBUTED IN SERIES OF VEINS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1972 Johnson, Maureen G. U.S. Geological Survey
Updater 01-MAY-1990 Bolm, Karen S. 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.