The Keeler Oak Tree is a white oak, Quercus alba, eighty-eight feet tall with a drip line of one hundred twenty feet. About three hundred 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 as the Mansfield Township logo.