Main routes generally still existed in 1976.
Clearwater Stage Lines - operated 1949-1976
Original route: Grangeville-Lewiston
(acquired from Northwestern Stage Lines)
Sun Valley Stages - operated until 1990
Original route: Twin Falls-Sun Valley
Incorporated 1930's as a stagecoach operator
Teton Stage Lines - operated until 1992
Original route: Idaho Falls-Victor
Bus companies generally listed in the July 1942 Russell's Guide or the 1952 Mass Transportation's Directory, and their predecessor and successor companies. This list is somewhat arbitrary and provides a general overview.
Aberdeen Valley Stages - operated until 1950
Original route: Pocatello-Aberdeen-Springfield
Bear Lake Stages - operated until 1962 (to Teton Stage Lines/above)
Original route: Pocatello-Montpelier-Paris-Logan UT
Gaffney Stage Lines - operated until 1955
Original route: Lewiston-Orofino-Headquarters
Matthews Bus Line - operated 1932-1949
Original route: Moscow-St. Maries-Spokane WA
Miller Bros. Truck Line - operated until 1942
Original route: Salmon-Armstead MT
Twin Falls-Wells Nevada Stage Line - 1927-1969
Original route: Rupert-Twin Falls-Wells