Park Hours (Today)
All Day
Agate Fossil Beds National Monument Visitor Center: 9:00AM - 5:00PM
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About the Park
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.
What to See & Do
Daemonelix Trail
Hike a one-mile trail back in time to the day of the paleocaster, a dry land beaver, and paleosoils, fossilized dirt from the time this landscape was formed. Look out over the vast, open table lands that define the high plaines east of the Rocky Mountains.
Fossil Hills Trail
Hike to University (left) and Carnegie Hills. The 2.7-mile Fossil Hills Trail allows visitors to walk up to and see the famed early 1900s quarries. From these quarries, paleontologists recovered some of the world's best preserved and most complete fossilized Menoceras, Moropus, and Dinohyus skeletons.
Visitor Centers
Agate Fossil Beds National Monument Visitor Center
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.
Getting Here & Transit
How to Get Here
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.
Park Amenities
Operating Hours
Trails
The park's two trails are open from dawn till dusk every day. Visitor Center features Miocene Mammal fossils, a 12 minute movie, and the James H. Cook Collection, a unique collection of American Indian artifacts that were gifts to James Cook and his family.
- MondayAll Day
- TuesdayAll Day
- WednesdayAll Day
- ThursdayAll Day
- FridayAll Day
- SaturdayAll Day
- SundayAll Day
Photos
Tipis and Fossil Hills represent the two subjects that Agate Fossil Beds interprets.
Thunderheads are common in July.
The Dinohyus was a scavenger, nicknamed "Terrible Pig"
This buckskin shirt decorated with quills was worn by Red Cloud.
When to Go
Crowd CalendarPlan your trip around peak seasons to avoid crowds or embrace the energy of the busy months. Our crowd predictions are based on historical NPS Visitor Use Statistics.
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Best Time
May-September
Trip Length
1 day
Planning Agate Fossil Beds National Monument
These common questions go deeper into logistics and planning. For real-time updates on road closures and current conditions, always check the Alerts section above.