An infantry assualt followed the detonation of a mine under the positions of the Third Louisana Regiment in the Vicksburg defenses.  Troops of General McPherson's corps stormed into the forty foot deep crater but were beaten back and the siege operations continued.  The surrender that came nine days later made any further attempts at mining moot.  (By John Osborne)  

Confederate General J.E.B. Stuart's cavalry was tasked with holding back the Union pursuit of the Army of Northern Virginia into Maryland after Gettysburg.  With Lee delayed by a flooded Potomac, this mission became critical and a series of cavalry engagements between Stuart and General Judson Kilpatrick's horsemen, usually fighting dismounted as heavy rains made sustained mounted action difficult, were fought around Funkstown and Boonsboro, Maryland. Lee's main force escaped across the Potomac four days later.  (By John Osborne)