Interstate 90 in the Great Plains

Within the Great Plains, Interstate 90 (I-90) runs west-east from Buffalo, Montana, to Sioux Falls, South Dakota. I-90 runs some 3020 miles in total (from Seattle to Boston), of which 782 miles are within the Great Plains. If you’re planning a road trip that includes driving along I-90 in the Great Plains, here are some resources to help you plan your trip.