The directions on ReserveAmerica take you to Oasis with a sign pointing down a dirt road to Painted Rocks. Do not take that road because it is about 20 miles long! Go back to the freeway and go to Levan and then go south on 28. We visited after Labor Day so there was no one at either gate to explain this to us. But I am so glad that we found Painted Rocks because it was awesome. All of the sites are very nice with water and 50 amp power. There is a nice dump station and convenient vault toilets. We stayed in site 12 and had a view of the lake. Most sites are level and large with a covered picnic table on a cement pad. The interior roads are wide and easy with a big rig. There are no showers, no trees, no laundry and no playground. But there is plenty of walking, hiking and fishing. The views are magnificent. Since it was late in the season we were the only ones there but I can imagine that in the summer on weekends especially it is very noisy when full. We camped here in a Motorhome.
There are two campgrounds suitable to tents, trailers, and motor homes at Yuba State Park in Utah. It is important not to confuse the Painted Rocks Campground which is on the east side of the lake with the Oasis campground on the west side, as access to the two campgrounds can be confusing for the first time visitor. The Oasis campground is easily accessed via I-5 however to get to Painted Rocks campground from the West entrance you will need to travel 12 miles on a gravel road. I highly suggest using the paved road access to Painted Rocks campground on the East side of the lake but you will have to leave I-5 some distance from the West Entrance to get there. Additional information is readily available through the Utah State Park web site. The sites are well spaced with many providing a nice view of the lake. This park has few trees and virtually no shade. However each site has a covered picnic table providing shelter. Boaters can launch just 1/2 mile down a paved road to the lake. Reservation can be made via the Utah State Park web site or Reserve America which is tied into the State system. The restrooms do not provide "Flush" toilets but are very clean. Of the 77 sites available, 29 are listed as "Partial Hookup" which means 50 amp service if you need it and water. The campground host did mention that if washing cars to wipe immediately as the local water does have a tendency to leave "water marks". We enjoyed our stay. The park is like many other State facilities in that it is normally very busy on weekends but much quieter during the week. There were only 4 other campsites occupied during our first week night visit there. We camped here in a Motorhome.