• The Agate Fossil Hills where mammal fossils were excavated in the early 1900's

    Agate Fossil Beds

    National Monument Nebraska

Welcome Teachers!

Discover Miocene Epoch fossils found in the late 1800s and early 1900s. Agate's great bonebed reveals one or more death events of a rhino that once roamed North America. Other strange beasts, long extinct, include animals from the chalicothere and entelodont families.

Learn of a friendship between rancher James Cook and Chief Red Cloud of the Oglala Lakota that resulted in the James Cook Collection of American Indian artifacts.

Explore the mixed-grass prairie and Niobrara River on two trails.

Ranger Anne helps kids on a field trip to Agate Fossil Beds National Monument.