Rend Lake visitor office - dam route

Rend Lake is a 13 miles (20.9 km)-long, 3 miles (4.8 km)-wide reservoir located in Southern Illinois in Franklin and Jefferson Counties near the town of Benton. It contains 18,900 acres (76 km²) of water, stores 185,000 acre feet (228,000,000 m3) of water, and supplies over 15 million gallons of water per day to 300,000 persons in over 60 communities.