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.
The Thousand Springs Visitor Center is located about one mile north of downtown Hagerman on US Highway 30.
The Thousand Springs Visitor Center is the only place at the monument to see fossils.
The Glenns Ferry Formation contains one of the world's richest Pliocene fossil deposits.
The Thousand Springs Visitor Center, opening in 2022, marks a new partnership between the National Park Service and Idaho Department of Parks and Recreation.
Enjoy scenic vistas and learn about Hagerman's Pliocene past at the Snake River Overlook.
Enjoy scenic vistas and learn about Hagerman's human and paleontological history at the Oregon Trail Overlook.