Illinois River | Vibepedia

The Illinois River is a 273-mile-long principal tributary of the Mississippi River, flowing through the U.S. state of Illinois with a drainage basin of 28,756.6 square miles. The river has a significant impact on the environment, economy, and culture of the region, with several river ports, historic sites, and recreation areas along its banks. The Illinois River has been an important water route for Native Americans, French traders, and early European settlers, and continues to play a vital role in the region's ecosystem and economy.