The Midnight Mine is a copper and gold mine located in Greenlee county, Arizona at an elevation of 3,999 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: 3,999 Feet (1,219 Meters)
Commodity: Copper, Gold
Lat, Long: 33.07222, -109.30722
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.
Midnight Mine MRDS details
Site Name
Primary: Midnight Mine
Secondary: Keating Mine
Commodity
Primary: Copper
Primary: Gold
Secondary: Lead
Secondary: Silver
Tertiary: Manganese
Location
State: Arizona
County: Greenlee
District: Copper Mountain 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
Type: Surface/Underground
Ownership
Owner Name: Harriet Sweeting
Home Office: Box 1225, Clifton, Az
Years: 1960 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Producer
Deposit Type: Replacement
Operation Type: Unknown
Year First Production: 1910
Year Last Production: 1942
Discovery Year: 1903
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: Mexican Highland
Mineral Deposit Model
Not available
Orebody
Form: FLAT TABULAR
Form: FLAT TABULAR
Structure
Type: R
Description: Ne Trending Faults; Intrusive Igneous Dikes Associated With Morenci Porphyry Stock
Type: L
Description: Porphyry Dikes Cutting Sedimentary Sequences
Alterations
Alteration Type: L
Alteration Text: Deposit Is Replacement Of Interbedded Sandstone And Limestone Sequences
Rocks
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock Unit
Age in Years: 55.500000+-0.500000
Age Young: Tertiary
Analytical Data
Not available
Materials
Ore: Lead
Ore: Chalcopyrite
Ore: Galena
Ore: Sphalerite
Gangue: Epidote
Gangue: Garnet
Gangue: Limonite
Comments
Comment (Deposit): ONE PATENTED LODE CLAIM; CONTINOUS MINERALIZED LAYERS PENETRATE HANGING AND FOOT WALLS TO FORM IRREGULAR BODIES; DIMENSION OF DEPOSIT WERE ESTIMATED FROM SURFACE CUTS
Comment (Location): AT END OF JEEP TRAIL THAT LEAVES HIGHWAY 666 AT ROCK HOUSE CANYON AND HEADS NE ; INFO FROM LAND.ST :(1973)
Comment (Development): OPERATORS INCLUDED ED C. ROZELL
Comment (Workings): DEVELOPMENTS INCLUDED 2 SURFACE STOPES WITH DIMENSIONS OF 50 FT BY 40 FT BY 40 FT, 3 TUNNELS, AND 2 CROSSCUTS
References
Reference (Deposit): ARIZONA DEPARTMENT OF MINERAL RESOURCES FILE DATA
Reference (Deposit): BLM DISTRICT SHEET 842
Reference (Deposit): ARIZ BUR MINES BULL 137, P. 187
Reference (Deposit): BENNETT, K.C., 1975, GEOLOGY AND ORIGIN OF THE BRECCIAS IN THE MORENCI-METCALF DISTRICT, GREENLEE COUNTY, ARIZONA: M.S. THESIS, UNIVERSITY OF ARIZONA, 153 P.
Reference (Deposit): ARIZ BUR MINES BULL 145, NO 12, P 75-77
Reference (Deposit): ABGMT-USBM FILE DATA
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.
