World Heritage Identification Number: 259
World Heritage since: 1983
Category: Natural Heritage
WHE Type: Protected Areas & National Parks
Transboundary Heritage: No
Endangered Heritage: No
Country: 🇺🇸 United States of America
Continent: Americas
UNESCO World Region: Europe and North America
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Great Smoky Mountains National Park: A Biodiverse Haven in the Southeastern United States
The Great Smoky Mountains National Park, located in the southeastern United States, spans over 200,000 hectares and is shared by the states of North Carolina and Tennessee. This expansive protected area is a testament to the beauty and biodiversity of the Appalachian region, making it the most visited national park in the U.S., attracting over 12 million visitors annually.
Geographically, the park lies within the Great Smoky Mountains, a part of the Blue Ridge Mountains, which is itself a range within the broader Appalachian Mountains. It boasts some of the highest peaks in Eastern North America, with notable summits such as Kuwohi (formerly Clingmans Dome), Mount Guyot, and Mount Le Conte. The boundary between the two states runs northeast to southwest through the heart of the park. The Appalachian Trail, a famous long-distance hiking trail that stretches from Georgia to Maine, traverses the center of the park.
One of the most striking features of the Great Smoky Mountains National Park is its rich and diverse flora. Home to over 3,500 plant species, the park contains nearly 130 species of trees, more than any other U.S. national park, and has one of the richest temperate forests in the world. The park's temperate rainforest climate fosters a unique environment where various ferns, wildflowers, and hardwood trees thrive. The park's old-growth forests provide vital habitat for numerous rare and endemic plant species, ensuring their survival and contributing to the park's designation as a UNESCO World Heritage Site.
In addition to its abundant plant life, the park is renowned for its remarkable wildlife diversity. Over 100 species of mammals inhabit the park, including black bears, elk, and historically, mountain lions, but they are now considered extirpated from the region. The park is particularly famous for its salamander population, hosting the greatest variety of these amphibians in the world. Its rivers and streams teem with fish, while its skies are home to a wide array of bird species. The park's conservation efforts have been instrumental in preserving many endangered species.
The Great Smoky Mountains National Park offers visitors a glimpse into the temperate flora that once dominated much of the Eastern United States before human intervention. Its relatively untouched landscapes provide valuable insights into the region's ecological history and offer opportunities for exploration, education, and recreation. From hiking and camping to wildlife viewing and photography, the park caters to a wide range of interests, making it a must-visit destination for nature enthusiasts worldwide.
UNESCO Description of the World Heritage Site
Stretching over more than 200,000 ha, this exceptionally beautiful park is home to more than 3,500 plant species, including almost as many trees (130 natural species) as in all of Europe. Many endangered animal species are also found there, including what is probably the greatest variety of salamanders in the world. Since the park is relatively untouched, it gives an idea of temperate flora before the influence of humankind.
UNESCO Justification of the World Heritage Site
Criterion (vii): The site is of exceptional natural beauty with scenic vistas of characteristic mist-shrouded (“smoky”) mountains, vast stretches of virgin timber, and clear running streams.
Criterion (viii): Great Smoky Mountains National Park is of world importance as the outstanding example of the diverse Arcto-Tertiary geoflora era, providing an indication of what the late Pleistocene flora looked like before recent human impacts.
Criterion (ix): The Great Smoky Mountains National Park is one of the largest remaining remnants of the diverse Arcto-Tertiary geoflora era in the world. It is large enough to be a significant example of continuing biological evolution of this natural system.
Criterion (x): The Great Smoky Mountains is one of the most ecologically rich and diverse temperate zone protected areas in the world. There are over 1300 native vascular plant species, including 105 native tree species, plus nearly 500 species of non-vascular plants - a level of floristic diversity that rivals or exceeds other temperate zone protected areas of similar size. The park is also home to the world’s greatest diversity of salamander species (31) - an important indicator of overall ecosystem health - and is the center of diversity for lungless salamanders, with 24 species.
Encyclopedia Record: Great Smoky Mountains National Park
Great Smoky Mountains National Park is a national park of the United States in the southeast, with parts in North Carolina and Tennessee. The park straddles the ridgeline of the Great Smoky Mountains, part of the Blue Ridge Mountains and part of the Appalachian temperate rainforest, which are a division of the larger Appalachian Mountain chain. The park contains some of the highest mountains in eastern North America, including Kuwohi, Mount Guyot, and Mount Le Conte. The border between the two states runs northeast to southwest through the center of the park. The Appalachian Trail passes through the center of the park on its route from Georgia to Maine. With over 12 million visitors in 2024, the Great Smoky Mountains National Park is the most visited national park in the United States.Additional Site Details
Area: 209,000 hectares
Number of Components: 1
(viii) — Outstanding example representing major earth stages
(ix) — Outstanding example representing ecological and biological processes
(x) — Contains most important habitats for biodiversity
Coordinates: 35.59305556 , -83.43555556
IUCN World Heritage Outlook
The 2025 Conservation Outlook on Great Smoky Mountains National Park reports the following assessment:
Source: International Union for Conservation of Nature (IUCN) · View assessment
Image
© Vicpeters, CC BY-SA 3.0 Resized from original. (This derivative is under the same CC BY-SA license.)
World Heritage Research
Discover scientific research and academic studies that deepen our understanding of Great Smoky Mountains National Park from its history and significance to its conservation, management, and contemporary challenges.
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Great Smoky Mountains National Park and its Missing Black Visitors: A Preliminary Analysis on the Hidden Architecture of Landscape
Great Smoky Mountains National Park, often celebrated as 'America's best idea,' has a hidden architectural legacy that excludes Black Americans. A preliminary analysis reveals marginal or absent representation of Black voices in park archives, promotional materials, and exhibits, perpetuating the perception of the park as an unwelcoming 'White' space. This study, using archival reviews and racial composition data, suggests that historical segregation and racism may have deterred Black visitation, contributing to a broader understanding of how landscapes are racialized. The findings underscore the need for narrative-driven deconstruction to dismantle such exclusions.
Sultana, S., Merced, J., Weber, J., Allen, R., & Carlton, G. (2023). Great Smoky Mountains National Park and its Missing Black Visitors: A Preliminary Analysis on the Hidden Architecture of Landscape. Southeastern Geographer, 63(1), 15–35. https://doi.org/10.1353/sgo.2023.0003
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A multi-level modeling approach to guide management of female feral hogs in Great Smoky Mountains National Park
A multi-level modeling approach reveals distinct seasonal habitat preferences of female feral hogs (Sus scrofa) in Great Smoky Mountains National Park, offering critical insights for targeted population control. Summer models indicate strong selection for lower slopes near human-dominated areas like roadways, while winter models show a shift toward oak-dominated forests with reduced preference for developed spaces. By integrating Step Selection Function (SSF) and Resource Selection Function (RSF) analyses, researchers created a consensus model to reconcile seasonal differences, providing wildlife managers with actionable data to focus surveillance and management efforts efficiently. This framework can be adapted for similar systems where habitat selection varies by season or level of analysis.
Buderman, F. E., Helm, P. J., Clark, J. D., Williamson, R. H., Yarkovich, J., & Mullinax, J. M. (2023). A multi-level modeling approach to guide management of female feral hogs in Great Smoky Mountains National Park. Biological Invasions, 25(10), 3065–3082. https://doi.org/10.1007/s10530-023-03086-4
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Seasonality, Distribution, and Diversity of Dung Beetles (Coleoptera: Scarabaeidae: Scarabaeinae, Aphodiinae and Geotrupidae: Geotrupinae) in Great Smoky Mountains National Park, USA
Dung beetle communities in Great Smoky Mountains National Park exhibit significant variation in diversity and abundance based on elevation, season, and habitat type. Research revealed that low-elevation areas host more diverse dung beetle populations compared to high-elevation zones, which are dominated by non-native species. Population peaks were observed in late summer across both elevations. The study used pitfall traps baited with cattle dung, deployed biweekly from April to September 2017, to quantify these patterns. This research highlights the ecological differences in dung beetle assemblages along elevational gradients and underscores the impact of non-native species on high-elevation communities.
Mamantov, M. A., & Sheldon, K. S. (2023). Seasonality, Distribution, and Diversity of Dung Beetles (Coleoptera: Scarabaeidae: Scarabaeinae, Aphodiinae and Geotrupidae: Geotrupinae) in Great Smoky Mountains National Park, USA. The Coleopterists Bulletin, 77(3). https://doi.org/10.1649/0010-065x-77.3.285
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Soil Collected in the Great Smoky Mountains National Park Yielded a Novel Listeria sensu stricto Species, L. swaminathanii
Researchers identified a novel species of Listeria, L. swaminathanii, from soil samples collected in the Great Smoky Mountains National Park. This discovery represents the first Listeria species without official taxonomic standing, highlighting its unique genetic characteristics. However, formal validation was hindered by restrictive access requirements imposed by the National Park, which complicated efforts to meet the criteria set by the International Committee on Systematics of Prokaryotes. The study underscores both the ecological diversity within protected areas and the challenges of integrating scientific research with conservation policies.
Carlin, C. R., Liao, J., Hudson, L. K., Peters, T. L., Denes, T. G., Orsi, R. H., Guo, X., & Wiedmann, M. (2022). Soil Collected in the Great Smoky Mountains National Park Yielded a Novel Listeria sensu stricto Species, L. swaminathanii. Microbiology Spectrum, 10(3). https://doi.org/10.1128/spectrum.00442-22
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Fuel and vegetation changes in southwestern, unburned portions of Great Smoky Mountains National Park, USA, 2003–2019
A 16-year study of unburned portions of Great Smoky Mountains National Park revealed that hypothesized increases in total woody fuel loads and ericaceous shrub cover were not present. Researchers found that while the sum of smaller fuel loads (less than 7.6 cm diameter) increased, woody fuel depth decreased over time. Elevation and moisture regime emerged as key factors influencing vegetation and fuel conditions, with O Horizon thickness increasing with elevation and being thicker in xeric compared to mesic sites. Live eastern hemlock basal area declined with elevation, while dead standing hemlock basal area increased, particularly on xeric and intermediate sites. The study assessed overstory basal area, ericaceous shrub cover, and fuel characteristics at 40 plots across three moisture regimes in 2003–2004 and again in 2019.
Coates, T. A., & Ford, W. M. (2022). Fuel and vegetation changes in southwestern, unburned portions of Great Smoky Mountains National Park, USA, 2003–2019. Journal of Forestry Research, 33(5), 1459–1470. https://doi.org/10.1007/s11676-022-01515-z
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Understanding Hikers’ Behavioral Intent Towards Leave No Trace in Great Smoky Mountains National Park
Hikers' behavioral intent to follow Leave No Trace (LNT) principles is significantly influenced by their perception of the effectiveness and difficulty of these practices, according to a study conducted in Great Smoky Mountains National Park. The research, involving 285 participants, found that while attitudes toward appropriateness and self-reported knowledge also played roles, perceived effectiveness and difficulty were the most critical predictors. These insights suggest that park staff can reduce recreational impacts by focusing education on demonstrating how easily LNT principles can be implemented and their tangible benefits. Such targeted messaging could enhance hikers' understanding of proper behavior and its positive outcomes.
Schafer, D., Bobilya, A. J., Lawhon, B., Faircloth, W. B., & Schultz, J. (2022). Understanding Hikers’ Behavioral Intent Towards Leave No Trace in Great Smoky Mountains National Park. Journal of Outdoor Recreation, Education, and Leadership, 14(4), 19–35. https://doi.org/10.18666/jorel-2022-11589
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Loading of stream wood following the 2016 Chimney Tops 2 Wildfire: Great Smoky Mountains National Park, Tennessee, USA
Rare mass-mortality events, such as the 2016 Chimney Tops 2 wildfire, significantly impact wood dynamics in mountain streams within humid forested regions. This study found that the wildfire resulted in a substantial influx of burned wood into streams within Great Smoky Mountains National Park (GSMNP), Tennessee, with an average of 47% of individual wood pieces and 72% of jams exhibiting burn marks by frequency, and 48% and 93% respectively by volume. Burned wood pieces were also found to have a larger diameter compared to unburned pieces (p = .065). The research suggests that such mass-mortality events could play a crucial role in the wood dynamics of mountain streams, potentially influencing physical and ecological processes in these ecosystems.
Praskievicz, S., & Sigdel, R. (2021). Loading of stream wood following the 2016 Chimney Tops 2 Wildfire: Great Smoky Mountains National Park, Tennessee,
View Publication Record | Read PublicationUSA . River Research and Applications, 37(3), 475–483. Portico. https://doi.org/10.1002/rra.3765
