Spent the weekend here in June. Weather was perfect except for a couple 10 min afternoon showers. As soon as you turn off Hwy 67 into the area there is a pay box. The down side is spot 88 is about an hour in along the washboard road, so finding your spot then wasting 2 more hours to go drop your envelope and get back to your site is a pain. There was a guy going from site to site collecting envelops which was convenient. There are a lot of large sites that can accommodate groups. It was a nice quiet area at spot 88 there was some 4 wheelers and dirt bikes riding around but not so bad as it would ruin your time there.