Wyoming
Wyoming was a region located in the interior of the North American continent of Earth. This was a state in the United States of America. The border states were Colorado, Montana, Nebraska, South Dakota, and Utah. Cheyenne was one of its cities. (; )

Yellowstone National Park was a geographical landmark in this state. ()

In an alternate timeline in which Nazi Germany had invaded the United States, as of 1944 Wyoming was controlled by American forces. ()

See also 
 

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Earth subnational entities