And U.S. Fish and Wildlife Service officials said by the end of 2016, they will double the size of the Rocky Mountain Arsenal National Wildlife Refuge habitat to 6,373 fenced acres, letting bison ...

Visitors are advised to view bison from the park’s hiking trail on the exterior of the herd’s enclosure. A distance of at least 75 feet is required between viewers and the fenced-in animals.

Of course, bison are largely domesticated animals at this point, having been fenced in for generations. In some ways, they act no differently from cattle, even when roaming free on a 9,000-acre ranch.