Fossil Butte National Monument

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Last Updated: December 5, 2025

Fossil Butte National Monument is located in southwestern Wyoming, covering an area of 8,198 acres.


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Summary

The monument preserves the fossilized remains of ancient animals and plants, which are estimated to be over 50 million years old.

There are many good reasons to visit Fossil Butte National Monument, including the opportunity to see some of the most well-preserved fossils in the world. Visitors can explore the many exhibits at the visitor center, which showcase the various fossils found within the monument.

One of the most popular points of interest at the monument is the Fossil Lake, which is the site where many of the fossils were found. Visitors can also explore the many trails and scenic viewpoints that offer stunning views of the surrounding landscape.

Interesting facts about Fossil Butte National Monument include the fact that it is home to over 80 different species of fish, as well as a number of other prehistoric animals. The monument is also considered to be one of the best places in the world to study the ecology of ancient freshwater lakes.

The best time of year to visit Fossil Butte National Monument is during the summer months, when the weather is warm and dry. However, visitors should be aware that the monument is located at a high altitude, so temperatures can drop quickly in the evening.

Overall, Fossil Butte National Monument is a fascinating destination that offers visitors the chance to explore some of the most well-preserved fossils in the world. Whether you are a history buff, a nature lover, or simply looking for a unique and memorable vacation destination, Fossil Butte National Monument is definitely worth a visit.

       

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Park & Land Designation Reference

National Park
Large protected natural areas managed by the federal government to preserve significant landscapes, ecosystems, and cultural resources; recreation is allowed but conservation is the priority.
State Park
Public natural or recreational areas managed by a state government, typically smaller than national parks and focused on regional natural features, recreation, and education.
Local Park
Community-level parks managed by cities or counties, emphasizing recreation, playgrounds, sports, and green space close to populated areas.
Wilderness Area
The highest level of land protection in the U.S.; designated areas where nature is left essentially untouched, with no roads, structures, or motorized access permitted.
National Recreation Area
Areas set aside primarily for outdoor recreation (boating, hiking, fishing), often around reservoirs, rivers, or scenic landscapes; may allow more development.
National Conservation Area (BLM)
BLM-managed areas with special ecological, cultural, or scientific value; more protection than typical BLM land but less strict than Wilderness Areas.
State Forest
State-managed forests focused on habitat, watershed, recreation, and sustainable timber harvest.
National Forest
Federally managed lands focused on multiple use—recreation, wildlife habitat, watershed protection, and resource extraction (like timber)—unlike the stricter protections of national parks.
Wilderness
A protected area set aside to conserve specific resources—such as wildlife, habitats, or scientific features—with regulations varying widely depending on the managing agency and purpose.
Bureau of Land Management (BLM) Land
Vast federal lands managed for mixed use—recreation, grazing, mining, conservation—with fewer restrictions than national parks or forests.
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