Agate Fossil Beds National Monument · Nebraska

Fossil Hills Trail

1.7 mi of trail, end to end · about 150 ft of climbing · 4,395 ft–4,566 ft · concrete, gravel, wood surface

Visitor centers

4,398 ft 4,550 ft · 1.2 mi high 4,566 ft

Along the way Agate Fossil Beds Visitors Center

Trailhead Fossil Hills Trailhead 4,402 ft Drive there

Fossil Hills Trail the Park Service's write-up

45-120 Minutes · dogs allowed · season Prepare for summer heat with a hat, sunscreen, and plenty of water for your entire party.

Start Fossil Hills Trailhead

The sun illuminates the fossil hills with a dark, stormy sky in the background.

This 2.7-mile (4.3-km) wheelchair-accessible paved trail begins at the visitor center. From the visitor center, the trail crosses the Niobrara River and its wetlands, passes through ecologically intact short- and mixed-grass prairie, and then loops around University and Carnegie Hills. It was on these hills that future local rancher James Cook discovered fossilized bones in the mid 1880s. Excavations didn't commence until nearly twenty years later, following a 1904 visit by Olaf A. Peterson, a paleontologist from the Carnegie Museum in Pittsburgh, Pennsylvania. Signs along the trail point out and discuss a variety of historic and geologic features; others identify the names of plants, including flowers and grasses.

About midway between the visitor center and Fossil Hills is an unpaved one-mile side trail that leads west to Harold J. Cook's homestead cabin. Restored to what it looked like in 1910, while Harold and his wife Eleanor still lived there, the "Bone" cabin was used after 1914 as the temporary residence for scientists who worked the fossil quarries. The American Museum of Natural History's lead excavator, Albert "Bill" Thomson, lived there whenever conducting field work in the bonebed in the late 1910s and early 1920s.

This hike on nps.gov

All 3 trails in Agate Fossil Beds National MonumentFind a trailOn the parks mapPark on nps.gov

About this trail's facts

The lines are the National Park Service's public trails layer, the trailheads and the waterfalls, views, peaks and historic places along them the Service's public points of interest, read 2026-10-16 and simplified for the map; the length is the line's, end to end. The write-ups are the Service's own "things to do" text, unedited. Heights come from USGS 3DEP through Terrain Tiles on AWS (Mapzen/Tilezen), read along each line and rounded; a short trail on steep ground can be off by a few tens of feet. Closures change: check the park's own site before you go.