The Wyoming State Legislature approved the formation of Park County--named in honor of Yellowstone National Park--on February 15, 1909. Early fur traders such as John Colter and George Drouillard traversed the area in the early 1800s, opening trade with the indigenous Crow and Shoshone. In the middle of the 19th century, buffalo hunters, miners, ranchers, and homesteaders arrived and displaced the indigenous people in the area, establishing trading...