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13. Sales of Products: Schedule of sales of products by metal (Details) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Details    
Gold sales $ 6,534,503 $ 3,971,567
Silver sales 19,605 11,584
Smelter and refining charges (434,596) (353,314)
Total $ 6,119,512 $ 3,629,837