What is illinois indiana border river?

The Illinois-Indiana border is marked by the Wabash River, which flows 503 miles (810 km) through the states of Indiana and Illinois in the United States. The river's source is in western Ohio, and it eventually flows into the Ohio River, which then flows into the Mississippi River. The Wabash River is an important waterway for transportation and recreation. It passes through several cities, including Terre Haute, Indiana and Mount Carmel, Illinois. Along its banks, there are several parks and nature preserves, providing habitats for numerous species of wildlife. The river also has a rich history, having played a significant role in the settlement and development of the region.