The United States has an extensive river system that includes some of the widest rivers in the world. The Mississippi River is the widest river in the United States, with a width of up to 1.2 miles (1.9 kilometers) at its widest point. The Missouri River is also one of the country's widest rivers, with a maximum width of about 2 miles (3.2 kilometers). Other wide rivers in the United States include the Colorado River, which can be up to 1 mile (1.6 kilometers) wide in places, and the Rio Grande, which can reach widths of up to 0.8 miles (1.3 kilometers).