• The Niobrara National Scenic river comes alive with color in the fall.

    Niobrara

    National Scenic River Nebraska

Geologic Formations

Cracked Cliffs

Cracked Cliffs

NPS photo

The cliffs along the Niobrara River reveal millions of years of the earth's history. For a description of this geological "layer cake", click to download a PDF of our geology bulletin.



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Did You Know?

Paleontologist displays fossil rhino vertebra

The Niobrara River valley has several globally and nationally significant fossil mammal sites. Paleontologists have found mammals such as camels, horses, mastodons and rhinos. Click "More" to visit the Niobrara National Scenic River "Fossils" page. More...