sentences:  Learning from the locals that Hannibal had already crossed into Gaul, he sent 300 Roman horsemen and some Gallic mercenaries up the east bank of the Rhône to locate the Carthaginian army.These troops met and scattered the aforementioned force of Numidian cavalry out scouting for Hannibal, and managed to locate the Carthaginian camp as well.Scipio, after learning Hannibal's location, loaded his heavy baggage onto the ships and marched north with his army to confront Hannibal.