The Ontario Mine is a gold, silver, and copper mine located in Cochise county, Arizona at an elevation of 4,600 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: 4,600 Feet (1,402 Meters)
Commodity: Gold, Silver, Copper
Lat, Long: 31.76889, -109.81528
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.
Ontario Mine MRDS details
Site Name
Primary: Ontario Mine
Commodity
Primary: Gold
Primary: Silver
Primary: Copper
Location
State: Arizona
County: Cochise
District: Turquoise 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: Great Western Copper Co.
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Replacement
Operation Type: Unknown
Year First Production: 1911
Year Last Production: 1920
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Mexican Highland
Mineral Deposit Model
Not available
Orebody
Form: LENTICULAR, BELT
Structure
Not available
Alterations
Not available
Rocks
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Paleocene
Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Late Cambrian
Analytical Data
Not available
Materials
Ore: Copper
Ore: Gold
Ore: Silver
Comments
Comment (Location): E. CENTRAL SEC. 20. UTM EST.
Comment (Production): A FEW TENS OF TONS OF ORE PRODUCED, 1911 AND 1920.
Comment (Development): OPERATORS INCLUDED D.K. BROWN
Comment (Deposit): COPPER CARBONATES AND SULFIDES IN BEDDED REPLACEMENT DEPOSITS IN CAMBRIAN LIMESTONE.
Comment (Workings): SHALLOW WORKINGS.
References
Reference (Deposit): KEITH, S.B., 1973, ARIZONA BUREAU OF MINES BULLETIN 187, P. 84.
Reference (Deposit): ABM BULL 123, 1927
Reference (Production): KEITH, 1973, ARIZ. BUR. OF MINES BULL. 187.
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.
