the general urquiza railway (fcgu) (in spanish: ferrocarril general urquiza), named after the argentine general and politician justo josé de urquiza, is a standard gauge railway of argentina which runs approximately northwards from buenos aires to posadas, with several branches in between. it was also one of the six state-owned argentine railway companies formed after president juan perón's nationalisation of the railway network in 1948. the six companies were managed by ferrocarriles argentinos which was later broken up during the process of railway privatisation beginning in 1991 during carlos menem's presidency.