Mountain goats at Glacier National Park in Montana
You're maybe more likely to see a mountain goat in Montana's Glacier National Park than anywhere else in the lower 48 states. You may not just see the goats from afar—they are accustomed to humans and will saunter right up to visitors. You're going to want to keep your distance, though: Mountain goats can deliver forceful headbutts.
These goats are excellent climbers and often can be found on high cliffs and seemingly defying gravity on the sides of mountains. That's thanks to a special split hoof that allows them to grip rocky ledges. Being plant eaters, mountain goats tend to spend most of their time grazing and looking for places to lick up much needed minerals.