... Hooker's troops had carried the crest on the right of the gap. Now, as simultaneous with this, Gibbon with his brigade had worked his way by the main road well up towards the top of the pass, and as Reno 's corps had gained a firm foothold on the crest to the left of the pass, it seemed that the position was carried; and though it was by this time too dark to push through to the western side of the mo...