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Mineral Properties and Reclamation Bonds (Details) - USD ($)
Mar. 31, 2017
Dec. 31, 2016
Initial lease fee    
Kiewit, Cactus Mill and all other sites $ 600,000 $ 600,000
Asset retirement obligation    
Kiewit Site 789,026 789,026
Kiewit Exploration 10,780 10,780
Cactus Mill 16,133 16,133
Total 815,939 815,939
Accumulated amortization (301,264) (319,457)
Mineral properties after accumulated depletion 514,675 496,482
Total $ 1,114,675 $ 1,096,482