Labelscar, a blog devoted to retail history, has a post about Great Falls’ very own Holiday Village Mall:
The oldest mall in Montana, Holiday Village Mall opened in 1959, anchored by Albertson’s grocery store, Skaggs Drugs, and Montgomery Ward. In the 1960s, Havre-based Buttrey’s Drug and Buttrey’s Suburban department store were added to the mall. In 1979, Minnesota-based Herberger’s department store opened on the east side of the mall in a minor expansion. Also, at some point the Buttrey’s Suburban department store became JCPenney.
The mall has been through a few changes since I arrived here in 2002; when I got here, the area that is now Scheel’s was empty, but the north entrance included an eatery called (IIRC) Pepper’s…and Neon Pretzel was right across from Little Athens.