I forgot about the air show also. It’s pretty good if you’re into airplanes. Most everything can be seen in 2 days if you have other plans. They should have a schedule published for this year or last. The major events are consistent year to year. The biggest changes will be the nightly performances if you want to catch a concert also. It’s a haul from Cheyenne to Glacier. Probably a couple of days if you’re taking the trailer. Best of luck and enjoy the trip. Both places were good memories for me.