The Wabash River is a major waterway in the United States, flowing through the states of Indiana and Illinois. It stretches approximately 503 miles, making it the longest river in Indiana. The river is a tributary of the Ohio River, which eventually leads to the Mississippi River. The Wabash River has played a significant role in the region's history, serving as a transportation route for Native Americans and early settlers. Today, it supports various recreational activities, including fishing, boating, and hiking along its banks, contributing to the local economy and community life.