Ash from Puyehue Volcano by Mar Chiquita, Argentina30.7S 62.8W
Visible on the left side of this image of Argentina is ash from the 2011 Puyehue volcanic eruption, which began in early June and was still active at the time this image was acquired in early August.
The ash reaches north from its Chilean volcano origin to Mar Chiquita (green in color, by left edge), a lake in the Argentine province of Córdoba. East of the ash cloud is the Paraná River, flowing down from the top edge and then curving to the right. Parallel to the Paraná along its southward course is the Uruguay River. The two converge to form the Rio de la Plata.