...fee colored water, thence on the 17th, passing Dumfries and halting for the night at Wolf Run Shoals, on the Occoquan river; on the 18th to Fairfax Station; on the 19th to Centreville; on the 20th to Haymarket , and on the 21st to Thoroughfare Gap, where the regiment remained for three days, in position to repel any advance through the gap. Frequent halts had been made during the first part of the march...