Designation: National Monument
Location: Idaho
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.
Hagerman, Idaho, gets 10 inches of rain per year. On average, there are 213 sunny days per year in Hagerman, Idaho. The July high is around 94 degrees. The January low is 22. Our comfort index, which is based on humidity during the hot months, is a 78 out of 100, where higher is more comfortable. The US average on the comfort index is 44.
The Thousand Springs Visitor Center is located about one mile north of downtown Hagerman on US Highway 30.
The Thousand Springs Visitor Center is the only place at the monument to see fossils.
Credit: NPS/S. Lacy
The Glenns Ferry Formation contains one of the world's richest Pliocene fossil deposits.
Credit: NPS Photo
The Thousand Springs Visitor Center, opening in 2022, marks a new partnership between the National Park Service and Idaho Department of Parks and Recreation.
Credit: NPS/S. Lacy
No entrance fees listed.
No entrance passes listed.
Tuesday, Jul 14
Sunny
High: 89.2°F | Low: 68.7°F
Humidity: 36%
Wind: 21.3 mph
Rain Chance: 1%
UV Index: 8.1
Sunrise: 06:14 AM
Sunset: 09:16 PM
Moon: New Moon (1%)
Visibility: 6 mi
Dew Point: 67.1°F
Cloud Cover: 1%
Pressure: N/A mb
Air Quality (PM2.5): N/A
Ozone: N/A
EPA Index: N/A
Wednesday, Jul 15
Sunny
High: 98.6°F | Low: 66.3°F
Humidity: 37%
Wind: 14.8 mph
Rain Chance: 2%
UV Index: 10.2
Sunrise: 06:14 AM
Sunset: 09:16 PM
Moon: New Moon (3%)
Visibility: 6 mi
Dew Point: 70.6°F
Cloud Cover: 2%
Pressure: N/A mb
Air Quality (PM2.5): N/A
Ozone: N/A
EPA Index: N/A
Thursday, Jul 16
Sunny
High: 106.7°F | Low: 68.9°F
Humidity: 30%
Wind: 12.8 mph
Rain Chance: 57%
UV Index: 10.1
Sunrise: 06:15 AM
Sunset: 09:15 PM
Moon: Waxing Crescent (8%)
Visibility: 6 mi
Dew Point: 70.1°F
Cloud Cover: 57%
Pressure: N/A mb
Air Quality (PM2.5): N/A
Ozone: N/A
EPA Index: N/A
This is the Year of the Fire Horse! In Chinese traditions, horses are admired for their wild spirit and desire for freedom. Horses are the most recurring animal in the Chinese world. Â
Come learn about Lunar New Year the most important holiday in China and Chinese communities around the world.
Visit the Thousand Springs Visitor Center for a virtual presentation by David Lei as he shares his in-depth knowledge.Â
Location: Thousand Springs Visitor Center
Date: Feb 27, 2026 12:00am to Feb 27, 2026 12:00am
Paid Event
This is the Year of the Fire Horse! In Chinese traditions, horses are admired for their wild spirit and desire for freedom. Horses are the most recurring animal in the Chinese world. Â
Come learn about Lunar New Year the most important holiday in China and Chinese communities around the world.
Visit the Thousand Springs Visitor Center for a virtual presentation by David Lei as he shares his in-depth knowledge.Â
Location: Thousand Springs Visitor Center
Date: Feb 27, 2026 12:00am to Feb 27, 2026 12:00am
Paid Event
Recent archaeological surveys have revealed new information about the Snake River Canyonâs Chinese gold mining camps, illuminating a part of Idaho history overlooked by traditional historical accounts.  Ron James's presentation reexamines the contributions made by Chinese immigrants to southern Idahoâs history and shares the new evidence indicating that the Chinese gold mining sites ca. 1870-early 1880s were far more extensive and complex than previously understood.Â
Visit the Thousand Springs Visitor Center for a presentation by Ron James as he shares his in-depth knowledge.Â
Date: Mar 20, 2026 12:00am to Mar 20, 2026 12:00am
Paid Event
Recent archaeological surveys have revealed new information about the Snake River Canyonâs Chinese gold mining camps, illuminating a part of Idaho history overlooked by traditional historical accounts.  Ron James's presentation reexamines the contributions made by Chinese immigrants to southern Idahoâs history and shares the new evidence indicating that the Chinese gold mining sites ca. 1870-early 1880s were far more extensive and complex than previously understood.Â
Visit the Thousand Springs Visitor Center for a presentation by Ron James as he shares his in-depth knowledge.Â
Date: Mar 20, 2026 12:00am to Mar 20, 2026 12:00am
Paid Event
Horses are diverse animals. Learn how horses evolved overtime to what we know of them today. The Hagerman Horse is one of the earliest and most prominent North American species of Equus. Take a look into ancient Idaho to see why horses and other megafauna thrived. Find out the possible reason why horses and many other megafauna went extinct.Â
Visit the Thousand Springs Visitor Center for a presentation by Jay Hauser as he shares his in-depth knowledge of the Hagerman Horse.Â
Date: Apr 24, 2026 12:00am to Apr 24, 2026 12:00am
Paid Event
Horses are diverse animals. Learn how horses evolved overtime to what we know of them today. The Hagerman Horse is one of the earliest and most prominent North American species of Equus. Take a look into ancient Idaho to see why horses and other megafauna thrived. Find out the possible reason why horses and many other megafauna went extinct.Â
Visit the Thousand Springs Visitor Center for a presentation by Jay Hauser as he shares his in-depth knowledge of the Hagerman Horse.Â
Date: Apr 24, 2026 12:00am to Apr 24, 2026 12:00am
Paid Event
Date: May 15, 2026 12:00am to May 15, 2026 12:00am
Paid Event
Date: May 15, 2026 12:00am to May 15, 2026 12:00am
Paid Event
As America marks its 250th anniversary, Hagerman Fossil Beds and the Northern Rockies reflect on a connection between people and horses that goes back much further than a quarter-millennium. From their first evolution to the lifeways of ancient hunters of North America, horses are deeply embedded in the earliest chapters of the human story in Idaho and beyond. New discoveries point to an early and important role for the region in the early spread of domestic horses into the American West - after which they shaped the lives and dynamics of both Native nations and colonial settlers, from warfare to mining, railroads, and city life. Today, the role of horses continues to grow and shift along with a changing landscape - but horses are still at the heart of life for many in the northern Rockies.
Visit the Thousand Springs Visitor Center for a virtual presentation by Dr. William Taylor as he shares his in-depth knowledge.Â
Date: Jun 26, 2026 12:00am to Jun 26, 2026 12:00am
Paid Event
As America marks its 250th anniversary, Hagerman Fossil Beds and the Northern Rockies reflect on a connection between people and horses that goes back much further than a quarter-millennium. From their first evolution to the lifeways of ancient hunters of North America, horses are deeply embedded in the earliest chapters of the human story in Idaho and beyond. New discoveries point to an early and important role for the region in the early spread of domestic horses into the American West - after which they shaped the lives and dynamics of both Native nations and colonial settlers, from warfare to mining, railroads, and city life. Today, the role of horses continues to grow and shift along with a changing landscape - but horses are still at the heart of life for many in the northern Rockies.
Visit the Thousand Springs Visitor Center for a virtual presentation by Dr. William Taylor as he shares his in-depth knowledge.Â
Location: The event will be held at the Thousand Springs Visitor Center in Hagerman, ID
Date: Jun 26, 2026 12:00am to Jun 26, 2026 12:00am
Paid Event
đ Physical Address:
17970 U.S. Hwy 30
Hagerman, ID 83332
đ¤ Mailing Address:
775 East 2830 South
Hagerman, ID 83332
đ Voice Phone: 2089334105
đ Fax Phone: 2088374857
âď¸ Email: hafo_information@nps.gov