(Loop Over, 59', 1937) under US441 S. of Gatlinburg, Sevier County, TN. S. of Gatlinburg, Sevier County, TN. US441 SW (curves SE) 9.8 miles from jct with US321 in Gatlinburg to the tunnel. (N35 38.103 W83 27.963) Photo by Jack & June Schmidt 6-11-18.