Casper – The Astronomical League, an alliance of amateur astronomy clubs, held its annual Astrocon conference, and there were other public events, called Wyoming Eclipse Festival 2017.

Fort Laramie – Fort Laramie held an eclipse viewing event, which included a Special "Great American Eclipse" Program.

Riverton – The biggest Polish expedition conducted as the Great Expedition of Polish Society of Amateur Astronomers was flocked between Riverton and Shoshoni in the central line of totality.
Casper – The Astronomical League, an alliance of amateur astronomy clubs, held its annual Astrocon conference, and there were other public events, called Wyoming Eclipse Festival 2017.
Fort Laramie – Fort Laramie held an eclipse viewing event, which included a Special "Great American Eclipse" Program.
Riverton – The biggest Polish expedition conducted as the Great Expedition of Polish Society of Amateur Astronomers was flocked between Riverton and Shoshoni in the central line of totality.
Solar eclipse of August 21, 2017