27x Postcard High Water Mark Monument GETTYSBURG NATIONAL MILITARY PARK High Water Mark Monument This monument stands within a copse of trees that was the very target for Picket's Charge on the afternoon of July 3rd. This point marks the farthest advancement by Rebel troops and has often been referred to by historians as the high water mark of the Confederacy. It stands to honor of all those who took part in the battle. Photographer - Dietrich Stock Photography Postcard size 4 x 6