Step Back in Time... Four to Three Million Years Ago!

During the Pliocene, this place looked quite different. Lush wetlands, forests, and grasslands provided excellent habitat for a variety of animals. From fascinating, now-extinct creatures like the saber-toothed cat, mastodon, and ground sloth, to more familiar animals like horses, beavers, and birds, the scientific study of Pliocene fossils is the key to Hagerman.

A mural shows a wetland habitat with horses, mastodons, and dozens of other species

Meet the Fossils

Learn more about life in Pliocene Hagerman— and the paleontologists who study it.

Photo of the Hagerman Fossil Beds entrance sign next to the road.

Frequently Asked Questions

Our most-asked questions about visiting Hagerman Fossil Beds

concept art of the new visitor center exterior

New Thousand Springs Visitor Center

We're counting down to the opening of the new Thousand Springs Visitor Center! Check this page for the latest updates.

Last updated: October 29, 2021

Contact the Park

Mailing Address:

PO Box 570
Hagerman , ID 83332


208 933-4105

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