Waterways in the United States include rivers, lakes, and canals that facilitate transportation and trade. Major rivers like the Mississippi River and Ohio River serve as vital routes for shipping goods. Lakes such as Lake Michigan and Lake Erie also play important roles in commerce and recreation. In addition to natural waterways, the U.S. has constructed canals, such as the Erie Canal, to connect different water bodies and improve navigation. These waterways support various activities, including fishing, boating, and tourism, while also providing habitats for wildlife and contributing to the ecosystem.