What Is It?
Hop into history at the Hagerman Fossil Beds in Southern Idaho, and experience one of the world’s largest fossil deposits from the Pliocene epoch—roughly 3 to 5 million years ago.
Fossil Deposits
In 1928, a local rancher named Elmer Cook saw fossil deposits eroding along the Snake River. He contacted the United States Geological Survey, which in turn notified the Smithsonian Institution. The Smithsonian conducted four expeditions between 1929 and 1934.
Piecing Together History
The Smithsonian digs unearthed more than 200 fossils of Equus simplicidens, a predecessor of horses, that more closely resembled zebras. Finding so many fossils together helped researchers realize these horses were likely pack animals. The digs also found previously unfound species such as Platygonus pearcei, an early javelina.
Visitor Center
The Thousand Springs Visitor Center opened in 2022, and is a great place to learn about a century of research at the site. The center has exhibits featuring fossils and the knowledge gained at the site, as well as ranger talks to guide visitors through the information.
More Information
Until March, the visitor center is open 9 a.m. to 3 p.m. Friday through Sunday. To plan your trip, call 208-933-4105 or visit www.nps.gov/hafo.