Why are there so many dead trees in the Smoky Mountains?
Mason Cooper
Published May 11, 2026
Thereof, what is killing the trees in the Smoky Mountains?
Without successful intervention, the hemlock woolly adelgid is likely to kill most of the hemlock trees in the park. Some hemlocks in the park are over 500 years old. Over 800 acres of old-growth hemlock trees grow in the Smokies-more than in any other national park.
Subsequently, question is, why are so many trees down in Gatlinburg? The wildfires of 2016 also contributed to the large number of downed trees on Newfound Gap Road and the Gatlinburg Bypass. Those areas have many standing trees that were killed in the fire. Those trees will likely continue to fall for several years.
Secondly, what happened to the trees in the Smoky Mountains?
The trees at Great Smoky Mountains National Park have been infested with adelgids for longer than a decade. With no natural predators and no evolved defenses, the adelgids swept through the hemlocks at the park like "a tsunami wave," Webster says.
Are the trees changing in the Smoky Mountains?
The fall color display usually reaches its peaks at higher elevations between late September and early October. Fall is officially here, and the trees in Great Smoky Mountains National Park are beginning to show off their fall colors. The colors are coming on the strongest at the highest elevations in the park.