The Several Courts Of This State

Mont. Code Ann. § 3-1-101, under Courts -- Definitions and General Powers.

Mont. Code Ann. § 3-1-101

The following are courts of justice of this state: (1) the court of impeachment, which is the senate; (2) the supreme court; (3) the district courts; (4) the municipal courts; (5) the justices' courts; (6) the city courts and such other courts of limited jurisdiction as the legislature may establish in any incorporated city or town.