Shows the Potomac River in the area of Loudoun County, Va., and Montgomery County, Md., where Union troops under Col. Edward D. Baker faced Confederate troops commanded by Evans. What was meant to be a "a slight demonstration" against the Confederate forces guarding the fords quickly became a rout. Col. Baker was one of the casualties.
Shows the area west from Cumberland, Md., east to Hanover, Pa. The maps also show the area surrounding the Antietam battlefield including Hopewell, Pa., to the north down to Winchester, Va., in the south. Despite the indication of Maryland in the lower left of the image, it actually depicts parts of Virginia and West Virginia.
Shows the area of convergence of the Potomac and Shenandoah rivers that marks the border of Maryland, Virginia, and West Virginia. Details include the location of Union forces in the town of Harper's Ferry and Confederate forces on Maryland Heights across the Potomac.