Heritage Trees
Heritage trees are those estimated to be 200 years or older, as determined by their size. To be classified as heritage trees, white or bur oaks need a trunk circumference measured at 4.5 feet above ground level of at least 10 feet, and pin, black, and red oaks need a trunk circumference of 11 feet.
Specimen Trees
Specimen trees are those 15 inches or greater in diameter that display superior quality and characteristics when compared to trees of the same species.