Clingmans Dome - Highest Mountain in Tennessee! Clingmans Dome is the highest point in the Park and in Tennessee (at 6,643 ft), and is located near the TN-North Carolina border - it's the 3rd highest point east of the Mississippi River, as described below. My last visit was 20+ years ago - there is a half mile paved moderately inclined path to the observation tower and worth a visit; however, would have been a good 4 hr trip there and back after our Cades Cove lunch; the group decided an afternoon rest in the cabin was their preference; but, below just a few pics from the web of the Dome and view, which is spectacular. Dave P.S. We had brought some bison filet mignons and Susan's grill pan, so 'ate in' that night and watched a movie later in the entertainment center. .