These are some of the elk that caused the elk jam.
Elk are too common in the park and have caused significant damage to aspen and willow trees. During the winter, the elk scrape the bark for food, and can girdle the tree, killing it. In some areas, 30 acre exclosures keep the elk out so the trees can recover. There is about 18″ of ground clearance so small animals are not hindered. Below is an example of aspens damaged by winter elk browsing.
