Definition
The Missouri River is one of the longest rivers in North America. ποΈ It flows for about 2,341 miles (3,767 kilometers) from its source in the Rocky Mountains to its confluence with the Mississippi River near St. Louis, Missouri. Think of it as the Mississippi's bigger, wilder cousin. The river passes through several states, including Montana, North Dakota, South Dakota, Nebraska, Iowa, Kansas, and Missouri. It has played a significant role in American history, serving as a major transportation route and a source of water for agriculture and industry. The river is also home to a diverse array of plant and animal life.