Golden Gate Group

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

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.

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.