Access to Pili involves a long detour around the Salar de Pujsa, then continuing up a drainage to a very rough track to a high trailhead (as it is). We hiked to Pili's shoulder and 5600m sub-peak, turning back due to wind. Although beautiful in its own way, Pili is an immensely stark, lonely and unforgiving environment.
After several Acclimatization peaks in the Cordillera Central, we went south and climbed Callejón Cañapa and Cerro Tomasamil before moving on to Ojos del Salado and Aconcagua.
Some great mountains...still have a lot of unfineshed business downthere!