The Geronimo Group is a manganese mine located in Pinal county, Arizona at an elevation of 2,549 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: 2,549 Feet (777 Meters)
Commodity: Manganese
Lat, Long: 33.07833, -110.86028
Map: View on Google Maps
Geronimo Group MRDS details
Site Name
                            
                            Primary: Geronimo Group
                        
                
Commodity
                                        
                Primary: Manganese
                
                            
                Tertiary: Barium-Barite
                
                        
Location
                                                State: Arizona 
                                                County: Pinal 
                                                District: Steamboat Mountain District 
                    
Land Status
                                                Land ownership: State
                        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
Not available
Ownership
Not available
Production
Not available
Deposit
                            Record Type: Site
                Operation Category: Past Producer
                Operation Type: Unknown
                Years of Production: 
                Organization: 
                Significant: N
                Deposit Size: S
           
        
Physiography
                General Physiographic Area: Intermontane Plateaus
                Physiographic Province: Basin And Range Province
                Physiographic Section: Mexican Highland
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
    
                    Name: Sandstone
                    Role: Host
                    Age Type: Host Rock Unit
                    Age Young: Miocene
    
                    Name: Sandstone
                    Role: Host
                    Age Type: Host Rock
                    Age Young: Miocene
Analytical Data
                                    
                Analytical Data: 1942 ASSAY WAS 30.2 PERCENT MANGANESE
            
                    
Materials
                                       
                    Ore: Pyrolusite 
                           
                    Ore: Psilomelane 
                           
                    Gangue: Quartz 
                           
                    Gangue: Barite 
                           
                    Gangue: Calcite 
                        
Comments
Comment (Location): SW FLANK OF DRIPPING SPRINGS MOUNTAINS. ; INFO FROM LAND.ST :(1979)
Comment (Development): SEVEN UNPATENTED CLAIMS; FLORENCE NEATHERLIN, OWNER 1941
Comment (Deposit): LENSES UP TO A FEW TENS OF FEET, WIDTHS UP TO 4 FEET. FOUR PARALLEL ZONES 50 TO 200 FEED APART.
Comment (Workings): SCATTERED DISCOVERY PITS AND OPEN CUTS.
References
                
                                        Reference (Deposit): USBM I-C. 7990, 1961, P. 152. 
                                                                
            
                
                                        Reference (Deposit): USBM FILE DATA 
                                                                
            
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.