After Brandy Station, a variety of Union sources reported the presence of Confederate infantry at Culpeper and Brandy Station. Hooker did not immediately act on this information. The day after the battle, Ewell's Corps began marching toward the Shenandoah Valley. Lee intended Ewell to clear the valley of Federal forces while Longstreet's Corps marched east of the Blue Ridge Mountains. A.P. Hill would then march his corps through the valley as well. On June 12, the leading elements of Lee's army were passing through the Chester Gap.