Any designation by the United States national park service of a national heritage area or national historic trail, pursuant to 54 U.S.C. 300101, et seq., that extends beyond federal land requires the approval of the legislature prior to a congressional act.
Mont. Code Ann. § 22-3-1401
Legislative approval of national designations
En
Official source: Montana Code Annotated (Montana Legislature). Reproduced from public-domain Montana statutes; confirm against the official source for the current text. Not legal advice.