Based upon a faulty early-morning reconnaissance, General Robert E. Lee decided to attack up the Emmitsburg Road in an effort to collapse the left flank of General George Meade's Army of the Potomac and decisively defeat it. The effort got underway when General James Longstreet's First Corps troops crushed General Sickles' Peach Orchard salient and turned north and east to drive deeply into the Union rear. A third Confederate division under Richard Anderson, part of A. P. Hill's Third Corps, joined in the attack, slamming one brigade after another into the overstretched Union line stitched northward along the Emmitsburg Road. The bloody fighting stair-stepped its way up Cemetery Ridge, tearing open a large gap in the center of the Federal line that threatened to split the Union army in two. The fate of the Battle of Gettysburg hung in the balance.

In addition to demonstrating how the fighting on the far Union left directly affected the combat to come in the center of General Meade's line, the authors also address some of the most commonly overlooked aspects of the fighting: what routes did some of the key units take to reach the front? What could the commanders actually see, and when could they see it? How did the fences, roads, farms, trees, ravines, creeks, and others obstacles directly affect tactical decisions, and ultimately the battle itself?

David L. Shultz is the author of numerous books, pamphlets, and articles concerning the Battle of Gettysburg. He is the recipient of numerous awards including special citations from the House of Representatives and Commonwealth of Pennsylvania for Meritorious Public Service for Battlefield Preservation.

Scott L. Mingus, Sr. is an author, tour guide, multiple award-winning miniature wargamer, patented scientist, and history buff based near York, Pennsylvania.