06/10/2026
A big oak isn’t always an old oak. This graphic shows several clues that help identify mature trees, including deeply furrowed bark, large spreading crowns, complex ecosystems, and growth rings.
For loggers, foresters, and landowners, understanding tree age helps with timber management and conservation decisions. Some of the oldest oaks support entire communities of insects, fungi, and wildlife, making them valuable long before they ever become lumber.