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1. Description of Business | 12 Months Ended
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Dec. 31, 2019
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1. Description of Business | 1. Description of Business New Jersey Mining Company (“the Company”) was incorporated as an Idaho corporation on July 18, 1996. The Company's primary business is exploring for, developing, and extraction of gold, silver, and base metal mineral resources in the Greater Coeur d’Alene Mining District of North Idaho and extending into Western Montana. The Company is currently focused on mining and milling ore from the Golden Chest property. It is also evaluating new mineral investment and development opportunities in the western United States.

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- Definition The entire disclosure for the nature of an entity's business, major products or services, principal markets including location, and the relative importance of its operations in each business and the basis for the determination, including but not limited to, assets, revenues, or earnings. For an entity that has not commenced principal operations, disclosures about the risks and uncertainties related to the activities in which the entity is currently engaged and an understanding of what those activities are being directed toward. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -URI http://asc.fasb.org/topic&trid=2134479 + Details
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