Over 5,000 acres, featuring two lakes and some truly beautiful trails. It’s best to get reservations early. Twin Valley campground is split into upper and lower. Lower being better for larger RVs while upper has more shaded, cozier sites better for smaller rigs and tents. Cox Hollow campground is more open and may have some pull through spaces. Nearby are the kitschy House on the Rock and Frank Lloyd Wright’s famed Taliesin home and studio. Recommend the Jumping Jupiter General store outside the park for all your camping needs.