Although I know where I took this photo, more or less (see the coordinates), I'm still not sure which peak this is. It was just after 9 am, so the sun would already be high in the northeastern sky.
I thought that it might be one of the minor peaks on the ridge between Nevado Rurec (which lies NNE of this location) and Nevado Uruashraju Norte (which lies to the SSE), but judging by the shadows, it looks like the sun is high in the sky to the right, so that would place this mountain left of Nevado Rurec. Turning further west, the next glaciated peak would be Nevado Cashan, so I guess that's probably it.
18 July 2011.