Dr. Tony Clevenger of the Western Transportation Institute at Montana State University has research video cameras that record the passage of a variety of large mammals using Banff National Park�s wildlife crossing structures under the TransCanada Highway. To view video clips of grizzly bear, black bear, mountain lion, elk and deer go to this website:
http://www.coe.montana.edu/wti/road_ecology/whats%20new.php
The Washington Department of Transportation has future plans to build wildlife under passes on I-90 in the North Cascades area.