US lawMontanaRegulationsTitle 42 — REVENUEChapter 42.20 — REAL PROPERTYSubchapter 42.20.3 — Classification of Nonproductive Patented Mining Claims42.20.301ARM 42.20.301ARM 42.20.301SupersededLast amended: 1987Length: 9 wordsOfficial source Cite as Mont. Admin. R. 42.20.30142.21.201 APPLICATION FOR CLASSIFICATION AS NONPRODUCTIVE, PATENTED MINING CLAIMPreviousARM 42.20.301NextARM 42.20.301