Montana Title 75. Environmental Protection § 75-1-111. Constitutionality--venue

(1) In an action filed in district court invoking the court's original jurisdiction to challenge the constitutionality of a licensing or permitting decision made pursuant to Titles 75 or 82 or activities taken pursuant to a license or permit issued under Titles 75 or 82, the plaintiff shall first establish the unconstitutionality of the underlying statute.

(2) A proceeding in district court to challenge an action taken pursuant to parts 1 through 3, 10, and 11 of this chapter must be held in the county where the activity subject to the proceeding is proposed to occur or will occur.