Hagerman is a town in Gooding County, Idaho, United States. The population was 768 at the 2007 census. According to the United States Census Bureau, the city has a total area of 0.3 square miles (0.78 sq km), all of it land. Hagerman is the home of the Hagerman Fossil Beds National Monument of the U. S. National Park Service. No other fossil beds preserve such varied land and aquatic species from the time period called the Pliocene Epoch.
More than 180 animal species of both vertebrates and invertebrates and 35 plant species have been found in hundreds of individual fossil sites. Eight species are found nowhere else, and 43 were found here first. The Hagerman Horse, Equus simplicidens, exemplifies the quality of the fossils. The Hagerman Horse Quarry fossil beds have produced 20 complete skeletons and a number of partial skeletons of this zebra-like ancestor of todays horse. (Adapted from the Hagerman Fossil Beds Official Map and Guide.) More information is available at the monument website .