Gatlinburg, Tennessee Welcome Center The Gatlinburg, TN. Welcome Center is located just outside of town. You can get tons of information on the area here. You can also park for free and avoid the traffic hassles in town. A trolley runs throughout the area for just 25 cents. Attraction in and around Gatlinburg, TN; Ripley's Aquarium of the Smokies - Ober Gatlinburg. I-40 (exit 407) to the Great Smoky Mountains Please note: As this is the most traveled route to the Smoky Mountains from the Knoxville area, for the first 13 miles of this highway you will be traveling Tennesse State Route 66. At Sevierville this route now becomes US Route 441. Have a safe trip!