This map of the North Central United States lets you explore the nation's heartland. Features a wealth of travel and tourism information, including national and state parks, festivals, events, and historic points of interest, as well as an abundance of historical notes. Published in March 1974 as part of the "Close-up: U.S.A." series, with the travel poster "North Dakota, South Dakota, Nebraska, Kansas, Minnesota, Iowa, Missouri: Open Skies and Rolling Land."