The park’s Lamar Valley contains the greatest collection of large animals in North America: bison and elk herds, grizzlies in the woods, wolf packs, black bears, and osprey and bald eagles in the skies. A great trail to see elk and other wildlife in Lamar Valley is the the 5.3-mile Lamar Valley Trail.
The trailhead is east of Lamar Ranger Station. Dawn and dusk mark the best times to see active animals.
Here’s a video of a bull elk bugling loudly at Yellowstone:
Learn about trail guidebooks available in the Hittin’ the Trail series.