Illinois Mine

The Illinois Mine is a copper and zinc mine located in Santa Cruz county, Arizona at an elevation of 5,449 feet.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Illinois Mine

Commodity

Primary: Copper
Primary: Zinc
Secondary: Silver
Secondary: Lead
Tertiary: Gold

Location

State: Arizona
County: Santa Cruz
District: Washington Camp District

Land Status

Land ownership: Private
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.

Holdings

Not available

Workings

Not available

Ownership

Owner Name: Rosario Exploration Co.
Years: 1973 -

Production

Year: 1960
Time Period: Pre 1900, Late 50'S
Material type: ORE
Description: Cp_Grade: ^9% Zn, 4% Cu, 2% Pb, 4 Oz/T Ag

Deposit

Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Year Last Production: 1959
Discovery Year: 1875
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Sonoran Desert

Mineral Deposit Model

Not available

Orebody

Form: BUNCHES

Form: BUNCHES

Form: BUNCHES

Structure

Type: R
Description: Mineral Deposits Of Washington-Duquesne Area Occupy A Limestone-Sediment Belt (2.5 Miles Long And 1.25 Miles Wide) Surrounded By Igneous Rocks Which Also Form Detached Masses And Dikes Within Belt

Type: L
Description: Limestone Near Contact Shows Evidence Of Sheeting Or Inconspicuous High-Angle Faulting

Alterations

Alteration Type: L
Alteration Text: Coarsely Crystalline Limestone Has Been Contact Metamorphosed To Marble

Rocks

Name: Volcanic Rock (Aphanitic)
Role: Associated
Age Type: Host Rock Unit
Age Young: Early Permian

Name: Volcanic Rock (Aphanitic)
Role: Associated
Age Type: Host Rock
Age Young: Early Permian

Name: Volcanic Rock (Aphanitic)
Role: Associated
Age Type: Associated Rock
Age Young: Late Jurassic

Analytical Data

Analytical Data: ORE VALUES AVERAGED ABOUT 9% ZN, 4% CU, 2% PB, 4 OZ./TON AG

Materials

Ore: Pyrite
Ore: Galena
Ore: Chalcopyrite
Ore: Sphalerite
Gangue: Quartz

Comments

Comment (Deposit): Discovery Year: LATE 1800'S

Comment (Location): ADJACENT ON SW TO BONANZA MINE AND ON NE TO DUQUESNE MINE ; INFO FROM LAND.ST :(1979)

Comment (Development): PROPERTY COMPRISES 1 FRACTIONAL PATENTED CLAIM; PART OF W.C. DAVIS MINE GROUP (POCAHONTAS, BONANZA, PLUTO, AND ILLINOIS MINES) PURCHASED BY GEORGE WESTINGHOUSE IN 1899; OWNERS AND OPERATORS INCLUDED DUQUESNE MINING AND REDUCTION CO., NASH MINES (1957), D.C. GILBERT MINING CO. (1958), MAR-PAK CORP. (1959), JAMES V. MARINO (1961), CARL SANDBERG AND FRED WILLIAMS (1964); WORKED BY CHLORIDERS PRIOR TO 1900

Comment (Deposit): NEARLY VERTICAL ORE PIPE EXTENDING ABOVE AND BELOW 235-FT MINE LEVEL AND AVERAGING 5 FT BY 8 FT IN SIZE; MINERALIZATION IS DISSEMINATED AND IN IRREGULAR BUNCHES IN FAULT ZONE

Comment (Workings): DEVELOPMENTS INCLUDED ABOUT 600 FT OF OLD DRIFTS CONNECTED WITH BONANZA MINE; MAIN LEVEL OF ILLINOIS MINE CONNECTS WITH 235-FT. LEVEL OF BONANZA MINE

References

Reference (Deposit): BLM DISTRICT MINING SHEET 727

Reference (Deposit): ADMR FILE DATA, ILLINOIS MINE

Reference (Deposit): ABGMT-USBM FILE DATA

Reference (Deposit): USBM FILES, ILLINOIS MINE

Reference (Production): KEITH, 1975

Reference (Deposit): LEHMAN, NORMAN E., 1978, THE GEOLOGY AND PYROMETASOMATIC ORE DEPOSITS OF THE WASHINGTON CAMP-DUQUESNE DISTRICT, SANTA CRUZ COUNTY, ARIZONA; PHD. DISSERTATION, UNIVERSITY OF ARIZONA, P. 126-143, MAPS

Reference (Deposit): USGS MAP I-762

Reference (Deposit): TENNEY, JAMES B. 1927-29, HISTORY OF MINING IN ARIZONA; ARIZONA BUREAU OF MINES, P. 293-300

Reference (Deposit): ABGMT FILES STANTON B. KEITH

Reference (Deposit): ARIZ BUR MINES BULL 191, P. 78

Arizona Gold

"Where to Find Gold in Arizona" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Arizona. Read more: Where to Find Gold in Arizona.