Built for open country, pronghorn race across Montana's eastern grasslands at highway speeds. The northern Rockies hold an abundance of wildlife that has vanished from much of the country.

Pronghorn can sustain speeds near 55 miles per hour.

What sets it apart

They undertake some of the longest land migrations in North America. For those who know the region well, it is a point of quiet pride.

Fences remain a major obstacle along their ancient routes.

Why it matters

In the end, the story here is really a story about the northern Rockies and the people drawn to them. Give these animals room, and the reward is a glimpse of a wilder, older America.