Stumbled upon this site after striking out at Valley of Fire State Park, alongside Rt 169 between Lake Mead & Overton NV. There must’ve been at least a dozen RVs, trailers and trucks parked on a rocky Mesa. Several look like they had set up base camps for longer stays. No facilities whatsoever but town of Overton NV is 20 minutes away and has everything you might need. Might be noisy alongside the highway but there was not much traffic the night we stayed. Free.