Roaring Fork in Great Smoky Mountains National Park, Tennessee, USA

© Bernie Kasper/Getty Image

Falling for Tennessee

Although it might not look like it in this rather tranquil image, Roaring Fork in the Great Smoky Mountains National Park has earned its ferocious name. Found in the US state of Tennessee, the stream descends 762 metres over just three kilometres - a steep drop. After heavy rains, Roaring Fork transforms into a white-water rush, the sound echoing off the mountainsides. But during drier spells, the stream quiets to more of a babbling brook, as seen here along the Roaring Fork Motor Nature Trail. The popular 8.8-kilometre loop drive passes waterfalls, well-preserved historic log cabins, and scenic overlooks of some truly stunning forest. These are just some of the things that make Great Smoky Mountains one of the most popular national parks in the America.