Chestnuts (IMAGE) Penn State Caption Mature chestnut trees often grew straight and branch-free for 50 feet and could grow up to 100 feet tall with a trunk diameter of 14 feet at a few feet above ground level. For three centuries many barns and homes near the Appalachian Mountains were made from American chestnut and the trees provided untold tons of food for wildlife and humans. Credit American Chestnut Foundation Usage Restrictions Non commercial use only License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.