Within the Great Plains, Interstate 35 (I-35) runs north-south from Kansas City, Kansas/Missouri, to Laredo, Texas. (The northern terminus of I-35 outside the Great Plains is Duluth, Minnesota.) I-35 runs some 1568 miles in total, of which 968 miles are within the Great Plains. It passes through major cities including Wichita, Oklahoma City, Dallas-Fort Worth, Austin, and San Antonio. If you’re planning a road trip that includes driving along I-35 in the Great Plains, here are some resources to help you plan your trip.