42-14054. Determining and reporting valuation of closed mines
A. On or before August 31 of each year, the department shall find the full cash value of all patented and unpatented mines that were producing mines on the first Monday in January of any of the three preceding years but that are no longer producing mines.
B. On or before November 30 of each year, the department shall transmit the valuations of these properties in each taxing district to the respective county assessors.
C. The valuation required by this section is the value determined as of January 1 of the valuation year.
D. The department shall value nonproducing mines for a period of three valuation years after the last valuation year in which it was valued as a producing mine.