...Chester Gap, passing on the army's left, and with great difficulty and a forced march that night bivouacked below Gaines' cross-roads, holding the Rockford road and Warrenton turnpike, on which, near Amissville , the enemy had accumulated a large force of cavalry. On the 24th, while moving forward to find the locality of the enemy, firing was heard towards Newby's cross-roads, which was afterwards ascert...