We were there a few years back. We left here with 2 other couples and met up with some out there. If I remember correctly there were about 3 campers one pickup camper and 3 motor homes. Of course that was just our group. There are every kind of camping rig you can think off scatted all over there. Had a lot of fun, but it was mighty cold, wind about 25 mph blowing across. Dust was real bad. we built us a camp fire in the evening.
There were a lot of vendors down close to the town. There is a truck that comes around for dumping your tanks and one for fresh water. All for a fee.
The Government run camp grounds, there is a fee, not too much. But there are dump stations on the Government camp grounds.