A Deer Migration You Have to See to Believe | National Geographic

Researchers have only recently found the longest large animal migration in the continental United States: mule deer migrate 150 miles in western Wyoming each year. As shown on the video’s map, one end of this migration terminates across the mountains not far from Pitchstone Waters.

 

And it’s no easy task for the deer. Barriers include highways, fences, tough terrain and water bodies. In this National Geographic video by Joe Riis, see the modern day obstacles mule deer overcome to make their ancestral migratory trek.