Journal of Surgeon Alfred L. Castleman.

3d.–Division left camp at 7 this A. M., crossed the Potomac at Berlin, on a pontoon bridge, and march in a southwestern direction through Lovettsville. The Blue Ridge loomed up all day, to our right, and separated us from the Shenandoah Valley. All day we hear heavy firing beyond the Ridge, at Snicker’s Gap, through which the enemy was driven yesterday. General Pleasanton is after them.