Now in USA

National Parks / Agate Fossil Beds National Monument

Agate Fossil Beds National Monument

National Monument — NE

In the early 1900s, paleontologists unearthed the Age of Mammals when they found full skeletons of extinct Miocene mammals in the hills of Nebraska -- species previously only known through fragments. At the same time, an age of friendship began between rancher James Cook and Chief Red Cloud of the Lakota. These two unprecedented events are preserved and protected here... at Agate Fossil Beds.

Current Alerts

  • InformationNo Fuel Services

    Fuel up before visiting! Agate Fossil Beds National Monument is 30-50 miles from the nearest service stations.

  • InformationLimited Cell Phone Coverage

    Cell phone voice and data coverage is very limited in the park and surrounding area. Free visitor WiFi is available in the visitor center.

Source: National Park Service.

Upcoming Events

  • Winter Counts with Marty Two Bulls Jr.Sat Aug 29 2026
    Inside the Agate Fossil Beds Visitor Center, located at 301 River Road in Harrison, NE 69346.

Official park website →

Agate Fossil Beds National Monument: Alerts, Closures & Events | Now in USA