Electric only. We stayed at site 10 which is at the end on the roundabout. It was a perfect site (although facing a small power station) much larger than it appears at first. It is next to the road, but the road noise is not even noticeable. The views on all sides are majestic and at night the stars are amazing. Large fire pit and picnic table. We have a 34 5th wheel and it fit just fine.
If you're driving anything longer than 28' you should probably look elsewhere. It's a tight squeeze getting in and out of the campground, go slow and be careful! Beautiful little campground!