Trisha Shetty (Editor)

Hagerman Fossil Beds National Monument

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Nearest city  Hagerman, ID
Visitors  21,100 (in 2012)
Phone  +1 208-933-4100
Management  National Park Service
Area  4,351 acres (17.61 km)
Governing body  National Park Service
Established  November 18, 1988
Hagerman Fossil Beds National Monument
Location  Twin Falls County / Gooding County, Idaho, United States
Authorized  November 18, 1988 (1988-November-18)
Address  221 N State St, Hagerman, ID 83332, USA
Hours  Open today · 9AM–4PMTuesday9AM–4PMWednesday9AM–4PMThursday9AM–4PMFriday9AM–4PMSaturday9AM–4PMSunday9AM–4PMMonday9AM–4PM
Similar  Thousand Springs State Park, 1000 Springs Resort, Miracle Hot Springs, Hagerman RV Village, High Adventure River Tours

Extinct mustelids and other pliocene animals at hagerman fossil beds national monument

Hagerman Fossil Beds National Monument near Hagerman, Idaho, contains the largest concentration of Hagerman horse fossils in North America. The fossil horses for which the Monument is famous have been found in only one locale in the northern portion of the Monument called the Hagerman Horse Quarry. The 4,351-acre (17.6 km2) Monument is internationally significant because it protects the world's richest known fossil deposits from the late Pliocene epoch, 3.5 million years ago. These plants and animals represent the last glimpse of that time that existed before the Ice Age, and the earliest appearances of modern flora and fauna. This is also significant because the fossils present during this period of the Pliocene represent species which were alive during the early stages in the evolution of man, albeit on a different continent. The fossil beds were designated a National Natural Landmark in 1975.


Hagerman fossil beds national monument accessible preview

Notable fossils

  • Hagerman horse, Equus simplicidens, formerly known as Plesippus shoshonensis
  • Camelops, an extinct genus of camel that once inhabited North America
  • Many other species are also found in the fossil record, including mastodons, dirk tooth cats and bone crushing dogs (Borophaginae), as well as various species of fish, frog, vole and beaver.


    Hagerman Fossil Beds National Monument Wikipedia