The Ridley Mine is a lead, copper, and silver mine located in Pima county, Arizona at an elevation of 4,081 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: 4,081 Feet (1,244 Meters)
Commodity: Lead, Copper, Silver
Lat, Long: 31.85222, -110.80972
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.
Ridley Mine MRDS details
Site Name
Primary: Ridley Mine
Secondary: Graveyard Mine
Commodity
Primary: Lead
Primary: Copper
Primary: Silver
Secondary: Gold
Secondary: Zinc
Tertiary: Molybdenum
Tertiary: Iron
Location
State: Arizona
County: Pima
District: Helvetia-Rosemont District
Land Status
Land ownership: Military Reservation
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: 1929
Time Period: 1900-1929
Material type: ORE
Description: Cp_Grade: ^5% Pb, 2% Cu, 40 Oz/T Ag
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1915
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: TABULAR, BANDED
Structure
Type: R
Description: Homoclinal, Tilting And Broad Open Folds In S, Extensive Faulting I N N
Type: L
Description: Thrust And Normal Faulting/Fracture Zone; Faults Are Slickensided
Alterations
Alteration Type: L
Alteration Text: Partly Oxidized; Granodiorite Is Crushed, Altered, And Sheared
Rocks
Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Paleocene
Analytical Data
Analytical Data: 6.5% CU, 3.5% PB, 3.0% ZN, 30 OZ/T AG, $1.50/T AU (1955)
Materials
Ore: Sphalerite
Ore: Chalcopyrite
Ore: Pyrite
Unknown: Copper
Comments
Comment (Development): ANACONDA EXPLORED INTRUSIVE QUARTZ LATITE IN 1971 AS A POTENTIAL PORPHYRY COPPER DEPOSIT
Comment (Workings): SHAFT WORKINGS, 150 FT INCLINED SHAFT AND SHORT TUNNEL WITH SHORT DRIFTS ON 50 FT AND 150 FT LEVELS
Comment (Geology): BETTER ORE IS IN LOWER PART OF MINE; MOLYBDENITE IN LOWER PART OF MINE
Comment (Deposit): THIS REPORT REPRESENTS A MERGER OF ORIGINAL RECORD M050161 WITH RE CORD M000630 OF JAN WILT IN MOLYBDENUM FILE, CONTACT PERSON T.G. THEOD ORE, USGS ; INFO.SRC : 1 PUB LIT
Comment (Production): SPORADIC PRODUCTION
References
Reference (Deposit): SCHRADER, 1915, USGS BULL 582
Reference (Deposit): ABM, 1971, FIELDNOTES, V. 1, NO. 2
Reference (Deposit): DREWES, 1971, USGS MAP I-613
Reference (Deposit): SCHRADER, 1910, USGS BULL 430
Reference (Deposit): KEITH, 1974, ABM BULL 189
Reference (Production): KEITH, 1974
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.
