The Fort Niobrara National Wildlife Refuge has numerous skeletons and other fragments of bones that were discovered from the ancient fossil beds of the refuge. The place also includes a horse that has three toes and a mastodon that is long jawed. They existed in the area about 13 years ago down to the ice age time around 12,000 years ago.

There were herds of Bison that still roam all the grasslands along with several elk. The Fort Niobrara was also created in 1879 so as to maintain peace and quiet between the Sioux Indians and the settler communities. It is a one of a kind archaeological exhibit and museum that also features a section to give opportunity for hikers to explore.