McHenry Dam State Park is located in McHenry County, Illinois, and offers a variety of outdoor activities for visitors. The park features scenic views of the Fox River and provides opportunities for fishing, hiking, and picnicking. The park is also home to a large dam that plays a crucial role in flood control and water management in the area. With its well-maintained trails and natural beauty, McHenry Dam State Park is a popular destination for families and nature enthusiasts alike.