Known as Félix San Martín in town, the east–west RN 22 is the main thoroughfare, lying a few blocks south of downtown. Don’t confuse it with Av San Martín (ie sans the ‘Félix’), the obligatory homage to Argentina’s national icon. The principal north–south street is Av Argentina, which becomes Av Olascoaga south of the old train station. Street names change on each side of Av Argentina and the old train station. Several diagonal streets bisect the conventional grid.