GENERAL COMMENTS: The elevation is 7,100 ft. The campground, pack it in, pack it out, meanders its way around a hilltop above Joe's Valley Reservoir in a pleasant mixture of sagebrush, Ponderosa pine, Pinyon pine and junipers, such as Western. Many of the camping sites have panoramic views of the reservoir and surrounding mountains. Most of the camping sites are in the open, but wide spacing between them provide good privacy. Long parking aprons can accommodate boat trailers but there is also a large trailer parking area at the boat ramp. Adjacent to the boat ramp is a cafâ€š/marina providing such services as bait, ice, limited groceries and homemade bread pies. SEASONS Open Seasonal: Yes Open All Year: No Seasonal Comment: Open May 15 through October 30. No potable water after October 1. RATE AND MAXIMUM STAY PERMITTED Rate: $10 per day - single $18 per day - double Maximum Stay Permitted (days): 16
And what's more, Google Maps shows it and there's a Google Earth view of the area.
There are others in the Manti-LaSal area, with overnight costs in the vicinity of 7-10 dollars. And reservations on the internet of by phone.
I know that area from my days as a whitewater guide based near Moab. It's friggin' gorgeous.
One long day (in an RV) from Flagstaff. I think a possible itinerary is shaping up.