Battle of Manassas Gap

(Wikipedia) ... Following the defeat of the Confederates at the Battle of Gettysburg, Lee's Army of Northern Virginia retreated across the Potomac River at Williamsport, Maryland, and withdrew into the Shenandoah Valley. Maj. Gen. George G. Meade's Army of the Potomac, in pursuit of the Lee's broken army, decided to try to flank the Confederate army by crossing the river east of the Blue Ridge Mountains at Harpers Ferry and Berlin, Maryland, into the Loudoun Valley and then forcing a passage across the Blue Ridge in Lee's rear. To this end, on July 23, Meade ordered the III Corps, under Maj. Gen. William H. French, to cut off the retreating Confederate columns at Front Royal, Virginia, by forcing passage through Manassas Gap. Continued

Images: 1. General William H. French (U.S.). 2. Pontoon bridge at Berlin (now Brunswick), Maryland.