Glacier National Park
With more than a million acres to roam, the park is a safe haven for Montana wildlife—including 66 species of mammals and 260 species of birds. In Glacier, you'll find elk, the seldom-seen northern bog lemming, and even one of the largest remaining grizzly bear populations in the lower 48 states. Mountain goats wander freely and several wolf packs make their home in the park. Grinnell Glacier trail is a good place to spot bears and mountain goats, and Swiftcurrent Nature Trail and Hidden Lake Overlook are good areas to find mountain goats, bighorn sheep, bears, and possibly wolverines (which are being considered for listing as a threatened and endangered species).