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8. Asset Retirement Obligation: Schedule of Asset Retirement Obligations (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Details    
Balance at beginning of period $ 163,369 $ 154,292
Asset Retirement Obligation, Period Increase (Decrease) 9,632 9,077
Balance at December 31 $ 173,001 $ 163,369