Tag Archives: Idaho National Park

Hagerman Fossil Beds National Monument, Idaho


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.

Craters of the Moon National Monument & Preserve, Idaho


A Violent Past, Calm Present, and Uncertain Future…
Craters of the Moon is a vast ocean of lava flows with scattered islands of cinder cones and sagebrush. We invite you to explore this “weird and scenic landscape” where yesterday’s volcanic events are likely to continue tomorrow…

City of Rocks National Reserve, Idaho


Discover the “Silent City” of Rocks!
Emigrants of the California Trail describe the rocks here in vivid detail as “a city of tall spires,” “steeple rocks,” and “the silent city.” Today, this backcountry byway attracts rock climbers, campers, hikers, hunters, and those with the spirit of adventure. There’s inspirational scenery, exceptional opportunities for geologic study, and remnants of the Old West awaiting your discovery.