[1][2] The Pocatello Indians played as members of the Independent Utah-Idaho Intermountain League in 1900.
A new version of the Pocatello Bannocks started in 1952, originally as a St. Louis Browns affiliate for the first two years.
The franchise became an independent/co-op team and was renamed the Gate City Pioneers for the 1990 season; that team featured players from the Montreal Expos and Chicago White Sox farm systems as well as minor league players from the Hiroshima Toyo Carp of the Nippon Professional Baseball.
Pocatello gained one more team in 1993, when the Salt Lake City Trappers - forced out by the move of a Class AAA Pacific Coast League team to the city - moved to town as the Pocatello Posse in 1993.
A new team, the Gate City Grays, was formed in 2014 as part of the Northern Utah League.