(1) The executive officers of a city or town are the mayor, the marshal (if there is one), and such officers as the council may provide for assessment; collecting, auditing, safekeeping, and disbursing the revenue; and keeping the records and journals of the city or town. (2) The mayor is the chief executive officer of the city or town.
Municipal Executive Officers
Mont. Code Ann. § 7-4-4114, under Municipal Officers in General.
Mont. Code Ann. § 7-4-4114