Emigrant Trail in Wyoming

The Emigrant Trail in Wyoming, which is the path followed by Western pioneers using the Oregon, California, and Mormon Trails (collectively referred to as the Emigrant Trails), spans 400 miles (640 km) through the U.S. state of Wyoming. The trail entered from Nebraska on the eastern border of the state near the present day town of Torrington and exited on the western border near the towns of Cokeville and Afton.

Source: Wikipedia — Emigrant Trail in Wyoming (CC BY-SA 4.0)