The most visited national park in the U.S. is a biodiversity powerhouse

Countries & Cities · Published 22 October 2026 Swipe more like this →

In short: Explore why the Great Smoky Mountains draw 12.5 million annual visitors. This documentary showcases the lush ecosystem of this Appalachian landmark, from its highest peaks to its hidden wildlife.

Straddling Tennessee and North Carolina, the park is a vital part of the Appalachian chain and is bisected by the famous Appalachian Trail. It supports an incredible 19,000 known species, establishing it as a global center for biodiversity.

The region serves as the "Salamander Capital of the World," hosting numerous lungless salamanders alongside 39 reptile species. Other notable inhabitants include a population of 1,500 black bears, reintroduced elk, and over 200 species of birds.

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