The Rock House in Hocking Hills is a fascinating place to explore. This tunnel-like cave was created through many years of erosion and is located midway up a 150-foot cliff made of Black Hand Sandstone. It’s also the only true cave in the Hocking Hills State Park. This natural wonder in our area is the perfect place for guests to explore and admire Mother Nature’s creations. Through the cave’s gothic-like windows, guests will have a spectacular view of the lush, green valley below.