The Keeler Oak is a white oak, Quercus alba, 88 feet tall with a drip line of 120 feet. About 300 years old, it stood as Colonial troops and Hessian soldiers marched through Black Horse to Petticoat Bridge, where a famous skirmish took place during the Revolutionary War. The tree was affectionately named for the previous owners of the farm where it now stands and serves as the Mansfield Township logo.