The monument's sagebrush steppe landscape appears ideal habitat for rattlesnakes, but they are not found here. Why? We don't know. Prairie rattlesnakes inhabit other parts of Wyoming at elevations over 8500 feet, but usually are restricted to elevations less than 7,000 feet.
Did You Know?
There are more pronghorn antelope in the state of Wyoming than people. One hundred or so spend the spring, summer, and fall in Fossil Butte National Monument.