I'm looking for a resource to help estimate the height and age of a tree from its diameter (75+ inch circumference). My property has mature Red Pines and I'd like to estimate their ages and heights. I understand there will be a "fudge factor" in any resource I find but it's a start. I found some research by USDA - Forestry but none of the species included in the research are even close to a Red Pine.
Update #1 - The trees are part of unmanaged forest property I own. Most of the trees are less than 30 years old due to a wildfire. The rest, however, survived the fire and are much older than the new growth ( 30+ inch diameter). The only watering these trees get is from the sky. The soil is sand with river rock encountered 5-10 feet beneath the surface.