Exit at 19th Avenue (exit 305)
Take 19th Avenue south for 3.8 miles
Take a left on Kagy Blvd and continue for about a mile
Take a right into the Museum parking lot
You will want to make arrangements to fly into Bozeman Yellowstone International Airport at Gallatin Field. The Museum is located about 20 minutes from the airport. See directions above from 1-90 (southbound).