The Broad Top Mine is a silver and copper mine located in Pima county, Arizona at an elevation of 5,801 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: 5,801 Feet (1,768 Meters)
Commodity: Silver, Copper
Lat, Long: 31.85139, -110.75750
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.
Broad Top Mine MRDS details
Site Name
Primary: Broad Top Mine
Secondary: Alta Copper
Commodity
Primary: Silver
Primary: Copper
Secondary: Gold
Secondary: Tungsten
Secondary: Molybdenum
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.
Administrative Organization: Coronado National Forest
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Lewisohn Copper Co.
Production
Year: 1959
Time Period: 1955-1959
Material type: ORE
Description: Cp_Grade: ^5% Cu, 10 Oz/T Ag, Minor Au
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1956
Year Last Production: 1959
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: Strongly Brecciated Fault Zone
Alterations
Alteration Type: L
Alteration Text: Oxidized, Silication Of Limestone
Rocks
Name: Quartz Latite
Role: Associated
Age Type: Host Rock
Age Young: Late Permian
Analytical Data
Not available
Materials
Ore: Chalcopyrite
Ore: Malachite
Ore: Scheelite
Ore: Gold
Ore: Pyrite
Ore: Molybdenite
Ore: Silver
Comments
Comment (Deposit): DISSEMINATED SCHEELITE AND SPOTS OF MOLYBDENITE IN FAULT ZONE.
Comment (Workings): OPEN PIT AND TUNNELS FROM ADJOINING EXILE CLAIM.
Comment (Deposit): THIS REPORT REPRESENTS A MERGER OF ORIGINAL RECORD M050524 WITH RECORD D000790 OF JAN WILT IN MOLYBDENUM FILE, CONTACT PERSON T.G. THEODORE, USGS. ; INFO.SRC : 1 PUB LIT; 3 FIELD OBSERV
References
Reference (Deposit): KEITH, 1974, ABM BULL 189, P. 124.
Reference (Deposit): CORNWALL, H.R., 1973, FIELD EXAM (?).
Reference (Other Database): CIMRI
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.
