There must be a number of other body parts used to describe topography.... arm, knee, foot, ankle, heel, hand, elbow, gut, throat, eye... mouth (like Boca Raton) and no doubt others.
Many, many deeds reference the "Head" of some swamp, millpond, or stream. Head of Shourd's Mill, Head of Great Swamp, Head of Bull Creek, Head of Tulpehocking Swamp, Head of Dudley Hole, and Head of Swago Swamp, are just a few of the references I have come across.