The via Aurelia later was extended by roughly in 109 BC by the "Via Aemilia Scaura", constructed by M. Aemilius Scaurus. This road led to "Dertona" (modern Tortona), "Placentia", Cremona, "Aquilea", and "Genua", from which travellers could proceed to "Gallia Narbonensis" (southern France) by way of the "Via Postumia". This followed some rebuilding of the road by the same person during his consulship in 119 BC. By the time of the high Empire, travellers could go from Rome by way of the "Via Aurelia" across the Alps on the Via Julia Augusta to either northern France or "Gades" (modern Cadiz, Spain).