The Appalachian region hosts the highest concentration of temperate deciduous forests in the U.S., characterized by diverse tree species and seasonal foliage changes.

The temperate deciduous forests of the Appalachian region are known for their rich biodiversity and ecological significance. These forests consist of broadleaf trees like oak, maple, and birch, which shed their leaves in autumn. The region's varied elevation and climate conditions create ideal habitats for a wide range of flora and fauna. These forests are vital for carbon sequestration, water cycle regulation, and supporting wildlife, making them one of the most important ecosystems in the U.S. Conservation efforts focus on protecting these forests from logging, invasive species, and climate change impacts.