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Fossil Butte National MonumentFossil Butte
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Fossil Butte National Monument
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.

NPS photo by Clay Kyte

Northern leopard frog.

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

Did You Know?
Fossil Butte National Monument preserves only 1% of the Fossil Lake deposits, the smallest of three ancient lakes that make up the famous Green River Formation.

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Last Updated: August 23, 2006 at 14:28 EST