... right of Yorktown. Yorktown and Redoubts Nos. 4, and 5, united by long curtains and flanked by rifle-pits, for the left of the line, until, at the commencement of the military road, it reaches Warwick river , here, a sluggish and boggy stream, twenty or thirty yards wide, and running through a dense wood fringed by swamps. Along this river are five dams--one at Wynne's Mill, and one at Lee's Mill, ...