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Hiking trails & Routes
United States
Nebraska
Sioux County

Fossil Hills Trail

Easy

4.6

(2627)

10,697

hikers

Fossil Hills Trail

01:14

4.62km

50m

Hiking

Hike the easy, paved Fossil Hills Trail at Agate Fossil Beds National Monument, exploring ancient fossil beds and the Niobrara River valley.

Last updated: February 26, 2026

Waypoints

A

Start point

Parking

Get Directions

1

99 m

Agate Fossil Beds National Monument Visitor Center

Highlight • Rest Area

At Agate Fossil Beds you can explore fossilized skeletons of Miocene mammals. The monument also preserves Lakota heritage and early ranching in Nebraska.

Tip by

2

2.19 km

Carnegie Hill Fossil Beds Loop

Highlight (Segment) • Trail

The trail at Agate Fossil Beds takes you to the summit of Carnegie Hill and University Hill, both of which are crowned by rock formations with Miocene fossils. There are informative signposts that tell you about the fossils and prehistoric mammals who once walked the landscape.

Tip by

B

4.62 km

End point

Parking

Loading

Way Types & Surfaces

Way Types

4.42 km

132 m

< 100 m

Surfaces

4.20 km

265 m

< 100 m

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

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Weather

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Today

Wednesday 8 July

27°C

14°C

74 %

Additional weather tips

Max wind speed: 29.0 km/h

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Frequently Asked Questions

What is the difficulty and terrain like on the Fossil Hills Trail?

The Fossil Hills Trail is considered an easy hike, suitable for all skill levels. It's a 2.7-mile (4.3 km) paved and wheelchair-accessible path. You'll experience a gradual uphill slope from the parking lot, a boardwalk section over the Niobrara River's marshy floodplain, and a mild but steady ascent into the prairielands, climbing to the buttes where fossil excavation sites are located. The loop portion has about 150 feet (45 meters) of elevation gain.

Where can I park to access the Fossil Hills Trail?

Parking is available at the Agate Fossil Beds National Monument Visitor Center. The trail starts directly from this area, making it very convenient to begin your hike.

Are there any fees or permits required to hike the Fossil Hills Trail?

No, there are no entrance fees or permits required to hike the Fossil Hills Trail at Agate Fossil Beds National Monument. You can enjoy the trail and the visitor center free of charge. For more detailed information, you can visit the official nps.gov website.

Is the Fossil Hills Trail dog-friendly?

Yes, dogs are permitted on the Fossil Hills Trail, but they must be kept on a leash at all times. Please remember to clean up after your pet to help keep the trail enjoyable for everyone.

What can I see along the Fossil Hills Trail?

The trail offers stunning panoramic views of the Niobrara valley and leads to significant paleontological sites. You'll pass through ecologically intact short- and mixed-grass prairie and wetlands, cross the Niobrara River via a footbridge, and see exposed agate. Informational signs along the route describe the abundant mammal fossils discovered here. The trail loops around University and Carnegie Hills, where rancher James Cook first found fossilized bones.

What is the best time of year to hike the Fossil Hills Trail?

The best time to hike this trail is generally during the spring and fall months when temperatures are milder. Spring brings vibrant prairie flora, while fall offers comfortable hiking weather. Summer can be hot and exposed, so early mornings or late afternoons are recommended if visiting then. Winter hiking is possible, but be prepared for cold temperatures and potential snow.

Is the Fossil Hills Trail suitable for families and children?

Absolutely! The trail's easy difficulty, paved surface, and wheelchair accessibility make it very family-friendly. The engaging informational signs about fossils and the relatively short distance are perfect for children and those new to hiking.

Are there any facilities available at the trailhead?

Yes, the trail starts at the Agate Fossil Beds National Monument Visitor Center, which offers restrooms, water, and exhibits displaying fossilized skeletons of early Cenozoic era mammals like the giant pig Dinohyus and rhino-like Menoceras.

What kind of wildlife or plants can I expect to see?

You'll encounter abundant prairie flora, including various grasses and wildflowers, especially vibrant in spring. The trail also traverses wetlands near the Niobrara River, which can attract various bird species. While larger wildlife sightings are less common on the trail itself, the monument is home to prairie dogs, deer, and various raptors.

Is the Fossil Hills Trail a loop or out-and-back?

The Fossil Hills Trail is primarily a loop trail. It starts from the visitor center, ascends to University and Carnegie Hills, and then loops back, offering a continuous scenic experience without retracing your steps for the main portion.

Are there any side trails or hidden gems to explore?

Yes, a notable side-hike leads to the 'Bone Cabin,' which was built in 1908 and used by paleontologists as a base for their discoveries. This adds an extra layer of historical interest to your visit to the fossil beds.

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