Early on July 14, 1863, Confederate Colonel Basil Duke's brigade, the first of Brigadier General John Hunt Morgan's cavalry to cross the Little Miami River at Porter's Mill, moved toward bridges near Miamiville. Around 7:30 am, Morgan's scouts dispersed bridge guards from Union Captain Jacob Shuman's Company H, 11th Ohio Cavalry, capturing one cavalryman and eight horses. Duke's troopers then entered Miamiville aiming to destroy the Little Miami Railroad bridge, but pickets from Shuman's company resisted until they were overrun by men from four Kentucky cavalry regiments. Lieutenant Colonel George W. Neff sent Lieutenant William H. H. Smith and 200 militiamen of the Miami Volunteers from Camp Dennison to help, and they charged the raiders as they prepared to burn the bridge. Duke's men fell back across the river and fought from cover while Smith's infantry formed a skirmish line on the south bank. Confederate Lieutenant Elias D. Lawrence's two-gun battery shelled the Union line and Camp Dennison's barracks without effect. When Union Captain Joseph Proctor attacked Duke's rear, Neff arrived and led convalescent soldiers in a bayonet charge across the bridge. After a brief struggle, the raiders retreated, having lost seventeen men: six killed, four wounded, and seven captured; Neff's force lost one killed, several wounded, four captured, and one missing. The bridges were saved. Later that morning, around 11 am, Morgan's raiders found the deserted Union supply depot Camp Shady at the northeast corner of present-day Branch Hill-Guinea Road and SR 28, along with 50 U.S. Army covered wagons and a drove of horses and mules. Morgan ordered the wagons searched for needed items and then burned, and the raiders continued southeast toward Batavia and Williamsburg.