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Photo: Chris Light, CC BY-SA 4.0 via Wikimedia Commons
The visitor center in town has fossil casts on display. The horses are the most famous, but there are birds and other animals too. You can also see a movie about the site, and information and maps.
Hagerman Fossil Beds National Monument is a Pliocene-age site near Hagerman, Idaho. The 4,351-acre (17.61 km2) Monument is internationally significant because it protects one of the richest known fossil deposits from the Blancan North American Land Mammal Age. These fossils date from 3.07 million to at least 4 million years ago in age and represent at least 200 species. Hagerman is best known for having the largest known concentration of the fossil Hagerman horse, Equus simplicidens. The fossil beds, including the historic Smithsonian Horse Quarry, were designated a National Natural Landmark in 1975 and was reclassified as a National Monument in 1988.
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With a view of the Snake River.
Has information about the Oregon Trail, which passed through this area leaving ruts that are still visible.