Hocking Hills State Park in south-central Ohio is full of intricate rock formations, colorful sandy hollows, and dark interesting caves winding through a deep river valley.
North Bend State Park in the wild and wonderful hills of northwest West Virginia offers up beautiful hiking, challenging mountain biking, and relaxing natural views.
Little Pine State Park, nestled in a cozy valley of Tiadaghton State Forest in north central Pennsylvania, has challenging hiking trails, beautiful wildflowers, fishable creeks, and a comfortable campground.