Mont. Code § 87-5-508
The department shall observe acts and omissions on the part of the government of the United States and its agencies within the state of Montana which do, will, or might affect adversely the fish and wildlife resources, including but not limited to the fishing streams within the state, and upon receiving such information, the department shall without delay send formal notification in writing, by certified mail, to the appropriate federal agency or agencies involved, setting forth in detail the appropriate objections of the state of Montana to the acts and omissions aforesaid. The department shall keep complete files and records, available for public inspection, of all matters and things done and all communications and correspondence sent and received pursuant to this section.
§ 87-5-508, MCA