Clinton Lake is the source of water for over 100,000 people in northeastern Kansas, making it the most relied on reservoir in the state. The lake also serves as a popular recreational area with four parks managed by the Army Corps of Engineers, and one park managed by the city of Lawrence. The lake offers opportunities for boating, fishing and other water sports. The surrounding land, part of which is Clinton State Park, allows access to mountain biking trails, camping, hiking, horseback riding, geocaching, hunting, picnicking and wildlife viewing.