This Confederate map, drawn by Captain Samuel P. Mitchell of the 1st Virginia Regiment, depicts the positions of troops, roads, and railroads during the Bull Run Campaign of 1861. Also noted are locations of battles and skirmishes, and the number of men killed and wounded on both sides. The battle was a jarring setback for the Union, one that shook the belief held by many Northerners that the Union could win the war quickly and at little cost.