noon
The cloud of dust that so many thousands of marching men made could be seen for miles . He did not know that Sherburne and the fastest of the rough riders were now far in front , seizing every Union scout or sentinel , and enabling Jackson 's army to march on its great turning movement wholly unknown to any officer or soldier of the North . Soon he would stand squarely between Pope and Washington . Before noon , Stuart and his wild horsemen joined them and their spirits surged yet higher . All through the afternoon the march continued , and at night Jackson fell upon Pope 's vast store of supplies , surprising and routing the guard . Taking what he could use he set fire to the rest and the vast conflagration filled the sky . Night came with Jackson standing directly in the rear of Pope .