Silver Reef Mine

The Silver Reef Mine is a silver mine located in Pinal county, Arizona at an elevation of 1,699 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: Silver Reef Mine
Secondary: Horn Silver Mine
Secondary: Hornsilver
Secondary: Silver Nugget Mine
Secondary: Nugget Mine
Secondary: Lead Boulder Mine
Secondary: Greenhorn Mine
Secondary: Santiago
Secondary: Cholla

Commodity

Primary: Silver
Secondary: Copper
Secondary: Gold
Secondary: Silica
Secondary: Lead
Tertiary: Molybdenum

Location

State: Arizona
County: Pinal

Land Status

Not available

Holdings

Not available

Workings

Type: Underground

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1905
Year Last Production: 1955
Discovery Year: 1885
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Form: LENSES

Structure

Type: R
Description: E-W Striking Fault With Minor Nw Striking Faults

Type: L
Description: E-W Fracture Zone With Minor Nw Striking Faults, Mf-934 Maps E-W, Mineralized Zone, Mainly In Oracle Granite, With Some Adjacent Tertiary Andesite

Alterations

Not available

Rocks

Name: Volcanic Rock (Aphanitic)
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene

Name: Volcanic Rock (Aphanitic)
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic

Analytical Data

Not available

Materials

Ore: Galena
Ore: Argentite
Ore: Chrysocolla
Ore: Silver
Ore: Wulfenite
Gangue: Quartz
Gangue: Limonite

Comments

Comment (Development): PREVIOUS OWNERS AND OPERATORS INCLUDE WM. FORBACH (1917); SILVER REEF M + M (1926, 1930); AZ. LEASING AND DEVELOPMENT (1927-1928); ALBERT C. FORBACH (1942); S.B. OWENS (1951) CLAIMS INCLUDE HORN SILVER, HORN SILVER NO. 1 AND NO. 2, SANTIAGO, NUGGET, NUGGET FRACTION, NUGGET EXTENSION, SAHUARA, CHOLLA, LEAD BOUDLER, SILVER NUGGET; THESE SAME CLAIMS ARE ALSO CALLED SILVER REEF NO. 1 TO NO. 9, (UPP. 3369); MAY ALSO HAVE BEEN OPERATED IN 1905 BY AZ. MERCANTILE TRANSPORATION AND SMELTING CO.

Comment (Workings): LARGEST AND EARLIEST WORKINGS ARE THE HORN SILVER SHAFT WITH LEVELS AT 96, 200, AND 240 FT, OPENED BY AN INCLINED SHAFT AND ADIT; OTHER WORKINGS INCLUDE THE SILVER NUGGET AND LEAD BOLDER AS WELL AS OTHER SMALLER WORKINGS

Comment (Location): LOCATED ON THE NORTH SLOPE OF THE SILVER REEF MOUNTAINS; CLAIMS EXTEND SLIGHTLY INTO SECTIONS 26 AND 24; UTM GIVEN IS FOR THE HORN SILVER SHAFT. ; INFO FROM LAND.ST :(1979)

Comment (Deposit): 3 TO 4 VEINS IN FAULT ZONES; MAJOR VEIN STRIKES N79E AND IS TRACEABLE FOR 6000 FT. VEIN WIDTH VARIABLE FROM A FEW FEET IN WEST TO 25-50 FT IN EAST. SILICEOUS SILVER ORES WITH COPPER, GOLD AND LEAD.

Comment (Deposit): Discovery Year: 1880'S

References

Reference (Deposit): ABGMT-USBM FILE DATA

Reference (Deposit): ADMR FILE DATA

Reference (Deposit): BLM DISTRICT SHEET 561

Reference (Deposit): USGS. MF-934

Reference (Deposit): PHILLIPS, K.A., 1987, ARIZONA INDUSTRIAL MINERALS: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES MINERAL REPORT 4, 185 P.

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.