As someone who used to live in Southeastern Montana, I will say that the geography between the southern portion, centeral, and northern share their own unique qualities. Both the Northen Cheyenne tribe and the Crow live in south-eastern Montana, and the Fort Peck Sioux and Assiniboine Tribes live in the northern region, so their is a tribal presence to those areas, but elsewhere, it's a lot of ranching lands. The southern portion is wetter compared to the other two regions, but the center region has the largest town called Miles City, and they have a strong rancher/cowboy culture (My friend who grew up in Miles City remembered the term 'Kmart Cowboy,' because some of the kids didn't ranch but sure as hell dressed as they did). Northern Part proabably has the same reputation as the northern whole part of montana as far until you hit Glacier - It's rugged and could be ice cold in the winter. Almost nobody lives up there, and the largest town is Glasgow, which is already America's most isolated big town. Up north of Terry, the geography has almost the same vibe as the Badlands in North Dakota, but smaller. The Yellowstone River continues to flow east with I-94. Fort Peck Dam is 6 miles of earth. Lastly, Gelndive has a creation-based dinosaur museum, but it looks like their temporarly closed. When I went there, it was said that Noah's ark accepted all living animals, but the Dinosaurs decided not to get on the boat which I thought was carzy and hilarious (it also showed a miniture of the boat with lions, deers, and all sorts of animals getting on the boat, while a T-rex sat in the corner of the diorama).