The Mcmahan Prospect is a copper mine located in Yuma county, Arizona at an elevation of 620 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: 620 Feet (189 Meters)
Commodity: Copper
Lat, Long: 32.54528, -114.10333
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.
Mcmahan Prospect MRDS details
Site Name
Primary: Mcmahan Prospect
Commodity
Primary: Copper
Tertiary: Lead
Tertiary: Iron
Tertiary: Molybdenum
Location
State: Arizona
County: Yuma
District: La Posa District
Land Status
Land ownership: Federal
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
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Deposit Type: Vein
Operation Type: Unknown
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: IRREGULAR
Structure
Type: L
Description: In This Immediate Vicinity, The Gneiss Has Been Faulted Sufficiently To Show Considerable Variation In Strike And Dip . Fault Zone Striking Se, 2-3 Ft Wide
Alterations
Not available
Rocks
Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Name: Granite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic
Analytical Data
Not available
Materials
Ore: Iron
Ore: Wulfenite
Gangue: Sericite
Gangue: Quartz
Gangue: Calcite
Comments
Comment (Location): ON W SIDE OF COYOTE WASH.
Comment (Deposit): AU, AG, AND CU IN QUARTZ VEINS NEAR APLITIC DIKES. MINERALIZATION ASSOCIATED WITH TWO-MICA GRANITE INTRUSIONS.
Comment (Workings): WORKINGS CONSIST OF A 55 DEG NE INCLINED SHAFT
Comment (Geology): MINERALIZATION IN PREC GNEISS THAT WAS REMETAMORPHOSED IN THE MESOZOIC.
References
Reference (Deposit): WILSON, E.D., 1933, GEOLOGY AND MINERAL DEPOSITS OF SOUTHERN YUMA COUNTY, ARIZONA: ARIZONA BUREAU OF MINES BULLETIN 134, P. 175.
Reference (Deposit): ABGMT FILE DATA
Reference (Deposit): WALLABY ENTERPRISES, TUCSON, AZ, MINING DISTRICT DATA BASE FILE.
Reference (Other Database): CIMRI
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.
