The Monument Hill District is a uranium mine located in Converse county, Wyoming.
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
Monument Hill District MRDS details
Site Name
                            
                            Primary: Monument Hill District
                        
                    
                            Secondary: Pat Pits, Pat No. 8
                        
                    
                            Secondary: Hardy Pit, Hardy-Zee Pits
                        
                    
                            Secondary: Spook Mine
                        
                    
                            Secondary: Denver Mine
                        
                    
                            Secondary: Betty Lou Mine, Boyles Pit
                        
                    
                            Secondary: D-10 Mine
                        
                    
                            Secondary: Pit One
                        
                    
                            Secondary: D-85 Mine, Thompson Claims
                        
                    
                            Secondary: Pit Three
                        
                    
                            Secondary: Pit Two
                        
                    
                            Secondary: 21 Mine
                        
                    
                            Secondary: 28 Mine
                        
                    
                            Secondary: D-7 Mine
                        
                    
                            Secondary: D-9 Mine, Dead Cow
                        
                    
                            Secondary: Fly Pit
                        
                    
                            Secondary: Tisket Group
                        
                    
                            Secondary: D-3 Anomaly
                        
                    
                            Secondary: D-5 Anomaly
                        
                    
                            Secondary: Dad 17
                        
                
Commodity
                                        
                Primary: Uranium
                
                            
                Secondary: Vanadium
                
                        
Location
                                                State: Wyoming 
                                                County: Converse 
                                                District: Southern Powder River 
                    
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
                        			
                Year: 1963
                Mined: 99790.320 mt
                Material type: 363,000 lbs of U3O8 was produced from 110,000 tons of ore.
            
                    
Deposit
                            Record Type: District
                Operation Category: Past Producer
                Operation Type: Unknown
                Year First Production: 1953
                Year Last Production: 1965
                Discovery Year: 1952
                Years of Production: 
                Organization: 
                Significant: N
           
        
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
                                    
                Analytical Data: Ore grades ranged fro 0.20 to 0.25% U3O8.
            
                    
Materials
                                       
                    Ore: Carnotite 
                           
                    Ore: Tyuyamunite 
                           
                    Unknown: Uraninite 
                           
                    Unknown: Coffinite 
                        
Comments
Not available
References
                
                                        Reference (Deposit): MINOBRAS, 1976, Uranium guidebook for Wyoming, 63 p. and appendix. 
                                                        Pages: p. 12-15.
                                                
            
                
                                        Reference (Deposit): Mrak, Vernon A., 1958, Uranium deposits in the Tertiary sediments of the Powder River Basin, Wyoming:  Wyoming Geological Association 13th Field Trip Guidebook, p. 233-240. 
                                                        Pages: p. 236.
                                                
            
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