Fossil Fish - Fossil Butte National Monument (U.S. National Park Service)

Fossil Butte National Monument – Wyoming

Fossil Butte National Monument - Wikipedia

Fossil Butte National Monument - Enjoy Your Parks

Fossil Butte National Monument - Wyoming

eScienceCommons: Lake-bed trails tell ancient fish story

Fossil Butte National Monument - Enjoy Your Parks

Visitor Center Exhibits - Fossil Butte National Monument (U.S. National Park Service)

Fossil Butte National Monument (U.S. National Park Service)

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Fossil Butte National Monument