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Cottontail Mine

Producer in Pima county in Arizona, United States with commodities Gold, Silver, Lead, Copper, 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 10048088
MRDS ID M800071
Record type Site
Current site name Cottontail Mine
Alternate or previous names Conejo
Related records 10234975

Geographic coordinates

Geographic coordinates: -111.34513, 31.54735 (WGS84)
Elevation 1250
Relative position 2 3/4 MILES S OF ARIVACA

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Arivaca(quadrangle 1:24,000 scale)

Sells(quadrangle 1:100,000 scale)

Nogales(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Brawley Wash(hydrologic unit)

Santa Cruz(hydrologic accounting unit)

Middle Gila(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 022S 010E 5 SW Arizona

Comments on the location information

  • MILS RANGE GIVEN AS 009E, WHICH IS WRONG ACCORDING TO QUADRANGLE MAP. JOHNSON AND CREASEY GIVE THE SECTION FRACTION AS SE. ; INFO FROM LAND.ST :(1979)

Commodities

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

Materials information

Materials Type of material
Galena Ore
Gold Ore
Quartz Gangue

Alteration

  • (Local) Oxidation, Surface Weathering

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
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -111.34513, 31.54735
ListMap

Economic information

Ore body information

  • General form IRREGULAR, LENSING

Controls for ore emplacement

  • In Veins Cutting Sediments, Irregular Lensing Vein

Comments on the geologic information

  • CRETACEOUS SEDIMENTS ARE METAMORPHOSED.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1938
Year of last production 1939

Mining district

District name Arivaca District

Land status

Ownership category National Forest

Ownership information

  • Type Operator
    Owner Byfield Manufacturing And Milling Co.

Production statistics

  • Year 1939
    Period 1938-1939
    Material ORE
    Accuracy Estimate
    Description Cp_Grade: ^0.2 Oz Au/Ton, 0.4 Oz Ag/Ton, Trace Cu, 0.4% Pb
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Lead Lead 0wt-pct
    Major Ore Silver Silver 11g/mt
    Minor Ore Gold Gold 6g/mt

Comments on the production information

  • PROBABLY SOLD AS SMELTER FLUX.

Comments on the workings information

  • SHAFT AND SMALL OPEN CUTS

Comments on development

  • IN 1938-39 PRODUCED 300 TONS OF ORE AVERAGING 0.2 OZ AU, 0.4 OZ AG/TON, TRACE CU AND 0.4% PB.

Reference information

Bibliographic references

  • Deposit

    ABGMT 189, P. 105

  • Deposit

    ABGMT-USBM FILE DATA

  • Production

    ABM BULLETIN 189, P. 105.

General comments

Subject category Comment text
Deposit SPOTTY, SOME FREE GOLD NEAR SURFACE, BASE METAL SULFIDES
Deposit RECORD # M001469 BY K.H. JOHNSON AND S.C. CREASEY HAS BEEN INCORPORATED INTO THIS RECORD. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1979 Gest, Don E. Arizona Bureau of Geology and Mineral Technology
Updater 01-SEP-1981 Johnson, Kris H. (Creasey, S.C.) 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.