Mendoza- Uspallata Bus, Argentina: An Expreso Uspallata bus on a high mountain road in Mendoza. Stunning snowfall. Uspallata is a village and administrative district in Argentina, in a scenic location on the road that crosses the Andes between Mendoza and Santiago in Chile. It is located 100 km (62 mi) west of Mendoza and was once served by the now disused Transandine Railway which passed through the town on its way from Mendoza to Los Andes in Chile.