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2. Summary of Significant Accounting Policies: Inventories (Policies)
 12 Months Ended
Dec. 31, 2017
Policies  
Inventories

Inventories

Inventories include concentrate inventory and supplies inventory. Concentrate inventory is valued at the lower of full cost of production or estimated net realizable value based on current metal prices. Costs consist of mining, transportation, royalties, and milling costs including applicable overhead, depreciation, depletion and amortization relating to the operations. Costs are allocated based on the stage at which the ore is in the production process. Supplies inventory is stated at the lower of cost or estimated net realizable value. At December 31, 2017 inventories consisted of $219,660 in concentrate inventory and $25,494 in supplies inventory. At December 31, 2016 all inventory was concentrate inventory.