I remember one of the biggest WTF moments for me around bozeman area growth was maybe 20 years back while archery hunting for elk in spanish peaks around high or rock lakes. I hadn't seen a person, a track, or sign of a person for a couple days. This was before the local trail running craze. I hiked up to the divide and looked into upper Jack Creek. I pulled out my spotter and could literally see guys pounding nails and bulldozing in roads, building giant mansions. One of the nicest places in MT, already ruined by that point, and it's a lot worse now.