Some of the world's best preserved fossils are found in the flat-topped ridges of southwestern Wyoming's cold sagebrush desert. Fossilized fishes, insects, plants, reptiles, birds, and mammals are exceptional for their abundance, variety, and detail of preservation. Most remarkable is the story they tell of ancient life in the warm, wet environment in and around a freshwater lake. Read More
A variety of fossil fishes, insects, plants, reptiles, birds and mammals from Eocene Fossil Lake are displayed in the visitor center museum.
Experience the geology, wildlife, scenery, and wide open spaces of Fossil Butte by hiking the trails, dirt roads or taking the scenic drive.
Explore our photo galleries and videos highlighting fossils from the Green River Formation.
As you plan your visit, be sure to check out the current conditions at Fossil Butte National Monument.
We offer a variety of ranger programs during in the summer months including fossil preparation demonstrations and drop in programs.
A list of research papers relating to Fossil Lake.
Teachers, have fun with these hands-on curriculum materials about Fossil Butte fossils designed for your classroom.
Last updated: May 5, 2023
