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3. Sales of Products: Schedule of sales of products by metal (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Details        
Gold $ 1,122,291 $ 1,337,687 $ 2,891,607 $ 3,314,613
Silver 2,346 3,869 7,233 11,305
Smelter and refining charges (91,792) (75,417) (275,048) (107,771)
Total revenue $ 1,032,845 $ 1,266,139 $ 2,623,792 $ 3,218,147