I-40 exit #407 This exit will take you to the Tennessee Smokies ball park, or into Sevierville, TN. where you will meet up with Hwy 441. Hwy 441 goes through Sevierville, TN. - Pigeon Forge, TN. - Gatlinburg, TN. and the Great Smoky Mountains National Park. For the complete road log click the link for TN route 66. 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!