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National monument · ID

Hagerman Fossil Beds National Monument

National Park Service
DesignationNational monument
StateID
Managed byNational Park Service
Best seasonMay–Oct
On the map
Map showing the location of Hagerman Fossil Beds National Monument

About Hagerman Fossil Beds National Monument

During the Pliocene, this place looked quite different. Lush wetlands, forests, and grasslands provided excellent habitat for a variety of animals. From fascinating, now-extinct creatures like the saber-toothed cat, mastodon, and ground sloth, to more familiar animals like horses, beavers, and birds, the scientific study of Pliocene fossils is the key to Hagerman.

Things to do

Historic & cultural sitePicnicking

When to go

JanFebMarAprMayJunJulAugSepOctNovDec
Best May–OctAverage low–high: 56–82°FAverage monthly sunny share of daylight: 66%2.3 wet days / month
Weather data & source

Each figure averages the highlighted months. 2018–2023 averages, not a forecast. Wet days estimate days with at least 1 mm of rain or snow using a calibrated ERA5 threshold. Contains modified Copernicus Climate Change Service information. Weather data by Open-Meteo.com (AWS Open Data, CC BY 4.0). ERA5 via Open-Meteo AWS Open Data

Plan your visit

Hagerman Fossil Beds National Monument is managed by National Park Service. Check current conditions, permits, and reservations before you go.

See it on Recreation.gov →