The bureau shall establish wilderness or natural areas, or both, from among lands classified as state parks and shall manage those areas primarily to preserve their natural character and features, and any use or development that threatens the character and features of those wilderness and natural areas is prohibited.   [PL 1997, c. 678, §13 (NEW); PL 2011, c. 657, Pt. W, §7 (REV); PL 2013, c. 405, Pt. A, §24 (REV).]