Elk belong to the deer family. Large bulls may weigh 800 lbs. The bulls have large antlers, which are shed each year.
Elk live in forests and forest edge habitat, although these bulls were in a prairie within a few hundred yards of forest.
These bulls were on a ridge above the wildlife loop road running through Custer State Park, South Dakota. This is a great park, along with the adjacent Wind Cave National Park, is a great place to find a wide array of wildlife.