The ruta 150 which runs from Patquía in La Rioja (Central Argentina) to the Chilean port of Coquimbo is now completely paved.
This is especially good to know for visitors of the Ischigualasto and Talampaya parks, because now you can cross the San Juan province straight away from Los Baldecitos (entrance Ischigualasto) to San José de Jáchal. From there the beautiful Calingasta valley (San Juan) and Chile are within reach.