The Great Smoky Mountains National Park attracts more visitors each year than any other national park in the USA. However, few people know that a group of determined Girl Scouts once saved an island in what is now the Great Smoky Mountains Institute at Tremont. In the 1930s, Camp Margaret Townsend sat along the Middle Prong of the Little River. Here, girls swam, camped, and lounged on their favorite spot, an enormous boulder at the tip of an island known as Girl Scout Rock.