Off the top of my head, two within that distance would be Coopers Rock State Park (Bruceton Mills, WV) and Five River CG (Parsons, WV).
Other options (if they can handle your rig size) are Blackwater Falls State Park and Canaan Valley State Park. Both would probably be at least 60-90 minutes away.
******Sorry, just saw your desire for full hookups. That would probably narrow my list to just Five River CG.
2017 Flagstaff Micro Lite 21 DS
2007 Dodge 2500 5.9L CTD, 4x4, quad cab