This colorful, easy-to-read state map of Iowa identifies all major thoroughfares, secondary roads, freeway interchanges, rest areas, distance markers, landmarks, recreational areas, and more. Shaded relief on the state map provides a three-dimensional sense of Iowa’s topography. Detailed inset maps of Cedar Rapids, Des Moines, and Sioux City are based on the latest street information from our cartographic experts. County and city indices make it simple to locate even the smallest town.