Plain and simple just a spot to pull off route 66 and do disbursed BLM camping. I found a spot not too far off the road because it had LTE 1 bar. Trains rumble by fairly often but it's not that loud. Some folks are staying up the day use area but there are no posted signs saying no overnight camping either there or at the 2nd parking lot which is halfway to the road. I enjoyed the hike up to the top of the crater.