San Nicolás is the northernmost city in the province of Buenos Aires and has abt. 130.000 inhabitants. The town has an important commercial activity that serves a vast farming area. The main industry is SIDERAR, the largest steel mill in the country, and there is also a large power plant. It is served by the Nuevo Central Argentino railway which connects the city with Santa Fe, Córdoba and the city of Buenos Aires. The Santa Fe-Buenos Aires freeway offers a good connection with the main industrial centers as well as with other highways into the Pampa region. The closest commercial airport is in Rosario, some 60 km away, with domestic and international flights.