Gary, I fished around a little at this website:
https://www.fs.usda.gov/activity/sha...camping-cabins
Best I could find is :
Johnson Creek, Pounds Hollow and Lake Glendale Recreation Areas are located adjacent to lakes. Oak Point Campground in Lake Glendale Recreation Area has electrical sites, showers, and RV dump station. Campgrounds that can accommodate RVs up to 40 feet are Johnson Creek Group Campground, Oak Point, Tower Rock and Camp Cadiz. Pounds Hollow campground offers one camping loop with electric sites.