US Highway 14-16-20 near the East Entrance of Yellowstone
The East Yellowstone Valley lies in the Absaroka Range of the Rocky Mountains in northwestern Wyoming between Cody and Yellowstone National Park, America's and the world's first National Park. The East Yellowstone Valley is a gateway to Yellowstone and Grand Teton National Parks and extends through the Shoshone National Forest.
The drive from Cody to the East Entrance of Yellowstone was claimed by President Teddy Roosevelt to be "the most scenic 50 miles in the world."