The U.S. National Park located in the Appalachians that is one of the most visited national parks in the country is Great Smoky Mountains National Park.

Great Smoky Mountains National Park spans the border between North Carolina and Tennessee and is renowned for its stunning natural beauty, diverse wildlife, and rich cultural history. The park attracts millions of visitors each year who come to explore its lush forests, scenic vistas, and extensive hiking trails, including a segment of the Appalachian Trail. Its designation as a UNESCO World Heritage Site highlights its ecological significance and cultural heritage, making it a beloved destination for outdoor enthusiasts and families alike. The park's accessibility and variety of recreational activities contribute to its status as a top tourist attraction in the United States.