There are 6 wildlife overpasses and 38 underpasses in these parks. They have reduced collisions by 80%. Black bears and mountain lions prefer the dark, damp underpasses while grizzlies, elk, deer, and bighorn sheep prefer the openness of the overpasses.

There are 6 wildlife overpasses and 38 underpasses in these parks. They have reduced collisions by 80%. Black bears and mountain lions prefer the dark, damp underpasses while grizzlies, elk, deer, and bighorn sheep prefer the openness of the overpasses.