• Knightia eocaena mass mortality

    Fossil Butte

    National Monument Wyoming

Amphibians

Beaver ponds are located near springs that surface at the contact of the Green River and Wasatch Formations.  The ponds provide ideal habitat for amphibians like this northern leopard frog.

Northern leopard frog.

NPS photo by Clay Kyte

Only three species of amphibians are documented: the Utah tiger salamander (Ambystoma tigrinum), chorus frog (Pseudacris triseriata maculata), and northern leopard frog (Rana pipiens).

Did You Know?

sagebrush country, photo by Rich Walter

Fossil Butte National Monument is one of a few areas in southwestern Wyoming not grazed by cattle and sheep.