Overview
More than 3.5-million years ago, this section of southern Idaho was on a floodplain of a giant lake. Lush grasslands and forests attracted camels, llamas, mastodons, zebra-like horses, and a variety of birds. Their fossils were not discovered until 1928, on the steep bluffs on the west bank of the Snake River, now Lower Salmon Falls Reservoir.

Highlights
Museum, film, Snake River Overlook, Oregon Trail Overlook
Must-Do Activity
Numerous mammal fossils from the Pliocene Epoch are on display at the National Park Service visitor center, located on the main drag in the small town of Hagerman, Idaho. Scenic overlooks of the Snake River and Oregon Trail are located further south, but there is no public access to the fossil beds.
Best Trail
The 3-mile long Emigrant Trail parallels the Oregon National Historic Trail, which has wagon ruts accessible from both the Snake River Overlook and Oregon Trail Overlook (where there is also a half-mile interpretive trail).
Instagram-worthy Photo
Interstate 84 passes directly over Malad Gorge State Park, north of Hagerman, Idaho. Take the freeway exit and walk to the canyon rim to see the beautiful waterfall you missed from the bridge.

Peak Season
Summer
Hours
https://www.nps.gov/hafo/planyourvisit/visitor-center-operating-hours-seasons.htm
Fees
None for Hagerman Fossil Beds National Monument, but there is a day-use fee at Malad Gorge State Park.
Road Conditions
The main access roads are paved. There is a one-lane bridge crossing the Snake River off Highway 30 that was closed during our visit so we took the Gridley Island Bridge instead.
Camping
There are places to camp along many sections of the Snake River, but not within the National Monument.
NPS museum in Hagerrman, Idaho Tiff at the Oregon Trail Overlook Scott at Malad Gorge State Park Malad Gorge State Park
Explore More – How many complete skeletons of zebra-like horses were discovered within Hagerman Fossil Beds?