The greater Hamburger Rock area located off of Lockhart Rd is one of my favorite places in the world. You can stay in the "developed" part of the campground, which consists of a picnic table and firepit and are scattered around the actual rock. There are plenty of other campsites along Lockhart Rd. and down side trails that are free. Most of them have fire rings that are build/maintained by those who find them. This place is so peaceful. We watched a full moon rise between the silhouette of two massive canyon walls. The night sky is amazing out here.