Well it's depends on which side. If you are going to stay on the Tennessee side I can't help. If you are gonna stay on the NC side we stay at http://www.mysmokymountainvacation.com/camp-smokemont.html there is no hookups in the national park campground It's near Cherokee NC. In Cherokee there are a lot of campground to choose from.
Got this from another post here on these forums. Check it out if you haven't already.
http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/27604179.cfm
2000 Ford F250 XLT Latiat Superduty Ext-cab longbed 4X4 7.3 POWER STROKE DIESEL
31' travel trailer
Happy Trails
NOTA