DescriptionActon began as a stop on the Great Northern Railway’s Billings and Northern branch line at the turn of the nineteenth century and was named for a railroad employee who lived there. By 1910, with the establishment of a post office, it had become a supply center for outlying ranches and farms.Contributing InstitutionMontana Historical Society Library and ArchivesGeolocation[1] Elevation3803 ft.CountyYellowstone County