Federal Highway 120 (Carretera Federal 120) connects La Placita de Morelos, Michoacán, to Mexican Federal Highway 85 in San Luis PotosÃÂ. Federal Highway 120 is split into two segments: the first segment runs from Xilitla, San Luis Potosàin the north to San José, Michoacán in the south. The second segment travels from Quiroga, Michoacán in the north to Tepalcatepec in the south.