At 200 feet above sea level, this was the highest of the three batteries in the park. Its three-faced parapet allowed it to support other nearby batteries and encampments against attacks from multiple directions. Its very steep approaches would have been cleared of trees in 1863 and, combined with its well-preserved 182 feet of parapet and ditches, would have proved exceedingly difficult to attack from the Accokeek Valley. It is estimated to have held from four to five guns.