The glaciated south-west face of Cerro del Plomo (5424m) from near El Pintor (approx. 4200m), looking north-east.
The peak to the left is Cerro Leonera (approx. 5050m).
A zoomed-out version of this close-up, made from the same viewpoint, can be found here
The Cerro del Plomo (5424m) is not to be confused with the nearby Nevado El Plomo (6070m), which lies on the Chile-Argentina border, about 20km to the north-east. (Cf. John Biggar, The Andes — A Guide for Climbers, ISBN 0-9536087-2-7, p. 217; Hermann Kiendler, Die Anden — Vom Chimborazo zum Marmolejo — Alle 6000er auf einen Blick, ISBN 978-3-936740-36-3, pp. 349–352; both refer to it as the Cerro del Plomo.)