Examine a fossiliferous Pliocene-aged site!

Did you know horses evolved in North America?  The Hagerman Horse, Equus simplicidens, was the first true horse (but its bones resemble Grevy’s zebra bones). It's the park's most famous fossil but we have over two hundred different species.  From saber-toothed cat, mastodon, bear, camel, and ground sloth, to much smaller animals, the scientific study of Pliocene fossils is the key to Hagerman.  Read More

Fossil skeleton of the Hagerman horse mounted standing

New World Horse and other wonders

Hagerman horse fossil skeletons were excavated in the early 1930s by the Smithsonian Institution. These skeletons are on display worldwide.

Lontra weiri is a new fossil species of river otter.

Lontra weiri

Lontra weiri lived at Hagerman over 3.8 million years ago and is the oldest known ancestor of today’s American river otters.

Learn about Sibiloi National Park in Kenya. Sister Park to Hagerman Fossil Beds National Monument.

Sibiloi National Park is our Sister Park

Learn about Sibiloi National Park in Kenya. Sister Park to Hagerman Fossil Beds National Monument.

You too can become a Hagerman Fossil Beds Jr Ranger

Become a Hagerman Fossil Beds Jr Ranger.

If you are between the ages of 6 and 100+ years old, we invite you to become a Hagerman Fossil Beds Junior Ranger.

Contact the Park

Mailing Address:

PO Box 570
Hagerman, ID 83332

Phone:

(208) 933-4105
Weekday and weekend hours are 9 am - 5 pm. Please leave a message and a Ranger will return your call as soon as possible.

Contact Us