Gallatin County Fairgrounds Bozeman, MT Email Address: Gallatin County Fairgrounds 901 N. Black Bozeman, MT Info: 406-582-3270 Region: Bozeman Upcoming events at Gallatin County Fairgrounds May 02 Thu 3rd Annual Women's Business Expo May 2 Bozeman Gallatin County Fairgrounds Events May 24 Fri Montana's Largest RV and Boat Show May 24 - Jul 21 Bozeman Gallatin County Fairgrounds Events Sports & Recreation