Discover the breathtaking beauty and unforgettable adventures that await in Illinois state parks. Lee Mandrell and DeeDee Niederhouse-Mandrell highlight the incredible diversity and natural beauty of the landscapes, flora, and fauna of the state. Marvel at the unique rock formations and 55 foot opening at Cave-In-Rock State Park, or leave the land behind to explore the waterways at Chain O' Lakes State Park. Step into history at Fort Massac State Park, or sit back and enjoy a striking sunset over the cypress grove at Eldon Hazlet State Park, Illinois' largest campground. Just in time for the state bicentennial, Illinois State Parks brings together more than 100 gorgeous full-color photographs highlighting some of the most beautiful and popular state parks in Illinois.