The Golden Gate Group is a gold, silver, and lead mine located in Pima county, Arizona at an elevation of 5,479 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: 5,479 Feet (1,670 Meters)
Commodity: Gold, Silver, Lead
Lat, Long: 31.80861, -110.76500
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.
Golden Gate Group MRDS details
Site Name
Primary: Golden Gate Group
Secondary: U.S. Grant
Commodity
Primary: Gold
Primary: Silver
Primary: Lead
Secondary: Copper
Secondary: Zinc
Location
State: Arizona
County: Pima
District: Helvetia-Rosemont 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: 1969
Time Period: 1880-1969
Material type: ORE
Description: Cp_Grade: ^1 Oz Au/Ton, 3 Oz Ag/Ton, 4% Pb, Minor Zn, Cu
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1925
Year Last Production: 1969
Discovery Method: 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 LENSES, BUNCHES
Structure
Type: R
Description: Homoclinal ; Reg.Trends: Tilting And Broad Open Folds In S. And Extensive Faulting In N.
Type: L
Description: Thrust And Normal Faulting - Fracture Zones.
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Malachite
Ore: Galena
Comments
Comment (Deposit): ORE APPARENTLY IN SILICIOUS POCKETS, VEINLETS, AND FILMS ON SLICKENSIDES.
Comment (Development): OPERATORS INCLUDED ARIZONA MINING AND REFINING CO., E.C. RANNEY
Comment (Workings): NUMEROUS SMALL SHAFTS, TUNNELS, ADITS, AND OPEN CUTSA M140
Comment (Commodity): GALENA IN SMALL STRINGERS IN SHEARED LIMESTONE - SHALE.
Comment (Location): SE 1/4 SECTION 1, NE 1/4 SECTION 12.
Comment (Geology): ORE GEN IN LIME-SILICATE ZONES CONTROLLED BY FAULTS AND FRACTURES. ; GEOL.DESC: AGE OF MINERALIZATION BELIEVED TO BE THAT OF THE QUARTZ LATITE INTRUSIVE OF DREWES - 1971. ; REG.COM: STRUCTURE IN DISTRICT IS THRUST FAULTING - HIGH ANGLE NORMAL FAULTING AND FOLDING.
Comment (Deposit): THE STRATIGRAPHIC UNITS USED ARE THOSE OF H. DREWES - 1971 USGS MAP I-613 ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
References
Reference (Deposit): SCHRADER, F. C. 1915 USGS BULL. 582.
Reference (Deposit): ARIZONA BUREAU OF MINES 1971 FIELDNOTES V. 1 NO 2
Reference (Deposit): DREWES, H. 1971 USGS MAP I-613 (SAHUARITA QUAD).
Reference (Deposit): KEITH,S.B.,1974,INDEX OF MINING PROPERTIES IN PIMA COUNTY,ARIZONA:ARIZONA BUREAU OF MINES BULLETIN 189, P.126.
Reference (Deposit): 1909 RECON F. C. SCHRADER U.S.G.S. BULL. 582
Reference (Deposit): 1971 DIREXPL ANACONDA-POSSIBLE NEW PORPH. COPPER DEPOSIT.
Reference (Deposit): 1971 GEOLMAP H. DREWES U.S.G.S. MAP I-613.
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.
