Seven muddy miles transformed a region and a nationThis fascinating account explores the significance of the Chicago Portage, one of the most important-and neglected-sites in early US history. A seven-mile-long strip of marsh connecting the Chicago and Des Plaines Rivers, the portage was inhabited by the earliest indigenous people in the Midwest and served as a major trade route for Native American tribes. A link between the Mississippi River and the Atlantic Ocean, the Chicago Portage was a geopolitically significant resource that the French, British, and US governments jockeyed to control. Later, it became a template for some of the most significant waterways created in the nineteenth and twentieth centuries. The portage gave Chicago its name and spurred the city's success-and is the reason why the metropolis is located in Illinois, not Wisconsin. A History of the Chicago Portage: The Crossroads That Made Chicago and Helped Make America is the definitive story of a national landmark.