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8. Asset Retirement Obligation: Schedule of Change in Asset Retirement Obligation (Tables) | 12 Months Ended
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Dec. 31, 2017
Tables/Schedules |
Schedule of Change in Asset Retirement Obligation |
|  | 2017 |  | 2016
Balance at January 1 | $ | 72,218 | $ | 28,656
Accretion expense |  | 8,456 |  | 5,291
Revision of estimated reclamation costs |  | 40,886 |  | 38,271
Balance at December 31 | $ | 121,560 | $ | 72,218

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- Definition Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13201-110859 + Details
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