Agate Fossil Beds National Monument
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.
RecAreaDirections
From US 20: 22 miles south of Harrison, NE on State Hwy 29, then three miles east on River Road (paved)
From US 26: 34 miles north of Mitchell, NE on State Hwy 29, then three miles east on River Road (paved).
From State Hwy 71: 25 miles west on the unpaved portion of River Road.
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Facilities
Agate Fossil Beds National Monument Visitor Center Facility
The visitor center is open every day except Thanksgiving, Christmas, and New Years Day. Summer hours are May 15 through September 30. The visitor center features a large diorama of Miocene mammal fossils, 12-minute park movie, and the James H. Cook Collection of Lakota artifacts, a unique collection of American Indian artifacts gifted to the Cook family by Chief Red Cloud and his descendants. Two trails are open every day from dawn till dusk.