The B Tree is 15 feet in diameter at chest height, 62 feet in perimeter, and 239 feet tall. It is the largest tree I found in the upper part of the grove away from the popular tourist trail. It's the only tree in the upper 90 acres that I found which exceeds 15k, though there are a few others that come close to that. Unfortunately, it has some graffiti (a couple-foot-large B inscribed on its northeast side at about waist height), and some old cutting has been done on the lower side of its base that I could not figure out a purpose for.