Fossil Butte National Monument, National monument in Wyoming
Fossil Butte National Monument exhibits exceptional fossil preservation.
The area was once a subtropical lake.
Fossil Butte reflects significant paleontological and geological stories.
Visitor center information can aid guests in understanding the butte's natural history.
Contains the world's largest deposits of freshwater fish fossils
Location: Lincoln County
Website: nps.gov/fobu/index.htm
Sources: Wikimedia, OpenStreetMap