The Hatfield Knob elk viewing tower is located just off of hwy 25W between Lafollette, TN and Jellico, TN. It's a very mild gravel road that offers excellent views of the surrounding countryside.
The trip is worth it for the views, but be prepared to hike if you're heading to the tower. We walked at least a half mile from the end of the trail and never spotted the tower.
There were 2 marked trails and 1 unmarked trail that forked off from the main gravel road we plan on exploring soon. The marked ones were both listed as easy trails so I wouldn't expect much difficulty for a stock Jeep.
Keep in mind that this is part of the Royal Blue/Sundquist WMA area so you will need a wma pass to ride legally. Also a blaze orange vest and hat is required outside of vehicles during deer gun season.