What is the widest river in the united states?

The widest river in the United States is the Mississippi River, which stretches approximately 2,340 miles from its source in Lake Itasca, Minnesota, to its mouth at the Gulf of Mexico in Louisiana. The river varies in width along its course, with its widest point being around 11 miles near Lake Winnibigoshish in Minnesota. The Mississippi River serves as a major transportation route for goods and materials, as well as a vital source of water for agriculture and industry in the Midwest and the southern United States. It is also home to a diverse range of wildlife and ecosystems.