How can you find the age of a tree after it has been harvested?

To determine the age of a harvested tree, you can count the growth rings on its cross-section, known as a tree cookie. Each ring typically represents one year of growth. Additionally, if the tree is too damaged or the rings are not visible, you can use the diameter of the trunk and species-specific growth rate estimates to approximate its age. However, counting rings is the most accurate method when the tree is intact.