The Ivanhoe Mine is a silver and copper mine located in Santa Cruz county, Arizona at an elevation of 4,639 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
Elevation: 4,639 Feet (1,414 Meters)
Commodity: Silver, Copper
Lat, Long: 31.56167, -110.80083
Map: View on Google Maps
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.
Ivanhoe Mine MRDS details
Site Name
Primary: Ivanhoe Mine
Secondary: Commercial Tunnel & Shaft
Commodity
Primary: Silver
Primary: Copper
Secondary: Lead
Tertiary: Gold
Tertiary: Molybdenum
Tertiary: Zinc
Tertiary: Antimony
Location
State: Arizona
County: Santa Cruz
District: Ivanhoe District
Land Status
Land ownership: National Forest
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
Type: Underground
Ownership
Not available
Production
Year: 1942
Time Period: 1905-1942
Material type: ORE
Description: Cp_Grade: ^Average 51 Oz/T Ag, 2% Cu, Minor Pb
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Year First Production: 1850
Year Last Production: 1924
Discovery Year: 1850
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: SPOTTY ORE SHOOTS, SMALL POCKETS
Structure
Type: R
Description: Ew And Ne Trending Quartz Fissure Veins Cutting Diorite And Granite Porphyry; Both Granite And Andesite In Region Are Sliced By Nnw Sheet Ing With Steep Easterly Dip
Type: L
Description: Mineralized Breccia, Nnw Pre-Paleocene Fault & 2 Paleocene Faults
Alterations
Alteration Type: L
Alteration Text: Sericitized, Kaolinized, Silicitied
Rocks
Name: Granite
Role: Host
Age Type: Host Rock
Age in Years: 145.000000+-
Dating Method: K-Ar
Age Young: Jurassic
Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Analytical Data
Analytical Data: ALTERED AREA S OF IVANHOE 50 PPM AG, 0.9 PPM AU, 150 PPM MO, 300 P PM SB, 30 PPM BE, 200 PPM BI, ESPECIALLY NEAR N & E MARGINS OF ALTERED AREA
Materials
Ore: Wulfenite
Ore: Galena
Ore: Chalcocite
Ore: Pyrite
Ore: Gold
Ore: Chalcopyrite
Ore: Tetrahedrite
Ore: Copper
Gangue: Alunite
Gangue: Epidote
Comments
Comment (Workings): SHAFT OPERATIONS, EXTENSIVE UNDERGROUND WORKINGS FROM SHAFT. 300 FT EACH OF TUNNELS, DRIFTS, AND SHAFTS INCLUDING THE 200 FT COMMERCIAL TUNNEL OR DRIFT
Comment (Geology): VEIN FILLINGS CONSIST OF IRREGULARLY AND CRUDELY BANDED, IRON STAI NED, SILICIFIED, KAOLINIZED, AND ALTERED ROCK BRECCIA AND QUARTZ; VEIN IS FAIRLY POROUS OR HONEYCOMBED AND CONTAINS POCKETS OF GALENA; EASTE RN OR HORN SILVER VEIN IS ASSOCIATED WITH AN ANDESITE DIKE
Comment (Deposit): THIS REPORT REPRESENTS A MERGER OF ORIGINAL RECORD M050441 AND M00 0410 WITH RECORD M030409 OF JAN WILT IN MOLYBDENUM FILE, CONTACT PERSO N T.G. THEODORE, USGS ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Comment (Location): WEST OF SMITH GULCH; 3/4 MI S OF JOHNSON SPRING ; INFO FROM LAND.ST :1979
Comment (Development): PREVIOUS OWNERS INCLUDE IVANHOE MINING CO (1907-1924), JOHNSON, T OBIN & BEASLEY, HOPKINS, A.H. IVES, J.E. HURD; 25 CLAIMS; RELOCATED IN 1905 BY AMERICAN PROSPECTORS
Comment (Deposit): VEIN IS EASTERLY EXTENSION OF MONTEZUMA VEIN. VEINS CRUDELY BANDE D. PROPERTY ALSO CONTAINS TWO OTHER VEINS OR LODES WHICH TREND N, ABOU T PARALLEL WITH RIDGE SEPARATING SQUAW AND SMITH GULCHES AND WITH SHEE TING STRUCTURE IN ROCK; CUTTING OBLIQUELY TO TRANSVERSE MOUTEZUMA VEIN ; WESTERN VEIN KNOWN AS SULFIDE VEIN & EASTERN ONE AS HORN SILVER VEIN ; WESTERN VEIN ENCOUNTERED 50 FT BELOW SURFACE AND CONTAINS SCATTERED ORE SHOOTS REACHING WIDTHS OF 4 FT; EASTERN VEIN IS SEVERAL FT WIDE AN D CONTAINS ORE STRINGERS OR STREAKS FROM ONE TO SEVERAL IN. WIDE.
References
Reference (Production): KEITH, 1975; ABM FILE DATA
Reference (Deposit): SCHRADER, 1915, USGS BULL 582
Reference (Deposit): DREWES, 1971, USGS MAP I-614
Reference (Deposit): KEITH, 1975, ABM BULL 191
Reference (Deposit): ELSING & HEINEMAN, 1936, ABM BULL 140
Reference (Deposit): ABGMT-USBM FILE DATA
Reference (Deposit): USBM FILES, IVANHOE MINE
Reference (Deposit): ABGMT CLIPPINGS FILE, IVANHOE MINE
Reference (Deposit): ABGMT FILE DATA, STANTON B. KEITH
Reference (Deposit): TENNEY, 1927-29, HISTORY OF MINING IN AZ, ABM, P.318
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.
