US lawMontanaRegulationsTitle 17 — ENVIRONMENTAL QUALITYChapter 17.24 — RECLAMATIONSubchapter 17.24.5 — Strip and Underground Mine Reclamation Act: Backfilling and Grading Requirements17.24.519AARM 17.24.519AARM 17.24.519A. THICK OVERBURDEN AND EXCESS SPOILRepealedLast amended: 1999Length: 2 wordsOfficial source Cite as Mont. Admin. R. 17.24.519AIS REPEALEDPreviousARM 17.24.519NextARM 17.24.520