(406) 522-0367 fax
The museum is located in the old Gallatin County Jail. Exhibits include a hanging gallows, model of Fort Ellis, Indian artifacts, and the historic "Big Horn Gun." There’s also a display on movie actor and Gallatin County High School graduate Gary Cooper. The Museum has a library, photo archives, and bookstore. Summer hours: Monday through Friday, 10 a.m. to 4:30 p.m. and Saturday from 1 p.m. to 4 p.m. FREE ADMISSION. Donations are appreciated.