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13. Asset Retirement Obligation: Schedule of Asset Retirement Obligations (Details) - USD ($)
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Details      
Balance at beginning of period $ 121,560 $ 72,218  
Asset Retirement Obligation, Period Increase (Decrease) 4,013 1,803  
Asset Retirement Obligation, Liabilities Incurred 10,771    
Asset retirement obligation $ 136,344 $ 74,021 $ 121,560