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7. Property, Plant, and Equipment: Property, Plant and Equipment (Details) - USD ($)
Mar. 31, 2018
Dec. 31, 2017
Details    
Mill land $ 225,289 $ 225,289
Mill building 536,193 536,193
Milling equipment 4,192,940 4,192,940
Mill buildings and improvements, accumulated depreciation (459,220) (428,760)
Mill Buildings and Improvements, Net 4,495,202 4,525,662
Buildings and Improvements, Gross 1,010,971 673,338
Buildings and improvements, accumulated depreciation (259,303) (222,648)
Buildings and improvements net 751,668 450,690
Bear Creek Land 266,934 266,934
Little Baldy Land 47,139 47,139
BOW Land 230,449 230,449
Eastern Star Land 250,817 250,817
Gillig Land 79,137 79,137
Highwater Land 40,133 40,133
Land 914,609 914,609
Property, plant and equipment, net of accumulated depreciation $ 6,161,479 $ 5,890,961