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Erica Barkley
Ontario Parks
Assistant Ecologist – Southeast Zone – Ontario Parks


This is a common question. A forest may have large trees, but is it TRULY old growth? There is no single definition for old growth forests in Ontario since forests are all so different. In some cases, old growth may refer to undisturbed forests that stand untouched over a long period of time. Others say tree age is a more defining feature of old-growth. While counting tree rings can help age a forest, here are a few easy features anyone can look for while walking through old-growth woods:

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