Harker's Attack
Brig. Gen. Charles G. Harker rode into mounted on a white horse while leading a column of eight Union regiments. In previous battles, Harker had four horse killed under him but escaped injury. Intense Confederate fire broke the Union attack and the survivors fled to a ravine 100 yards to your front. General Harker, a conspicuous target while rallying his troops, was shot from his horse mortally wounded. No further attacks took place at this location.
Plaque courtesy Lat34North.com.
Original page, with additional info, here.
Photo credit: Byron Hooks of Lat34North.com.