As the fighting flared in Cynthiana, another Union force, about 500 men of the 171st Ohio Infantry (along with 30 men from the 47th Regiment Kentucky Volunteer Mounted Infantry and 70 men from the 52nd Regiment Kentucky Volunteer Mounted Infantry) under the overall command of Brigadier General Edward Hobson, arrived by train about a mile north of the Cynthiana at Keller's Bridge, the bridge having been burned by a detachment of Morga's command a few days prior. This force fought portions of Morgan's force for about six hours. Eventually Morgan trapped this new Union force in a meander of the Licking River.