Volcanic Ash and Pumice From Puyehue
A boat covered by volcanic ash sits on the bank of Nahuel Huapi Lake in Villa La Angostura in southern Argentina, on Thursday June 16, 2011. (AP Photo/Federico Grosso)
A sunset view of the ash cloud from Chile’s Puyehue-Cordon Caulle volcano chain at the mountain resort San Martin de Los Andes in Argentina, on June 12, 2011. (Reuters/Patricio Rodriguez)
A man stands on the banks of the ash-covered lake Nahuel Huapi, near San Carlos de Bariloche, Rio Negro, Argentina, on June 8, 2011, four days after the eruption of Chile’s Puyehue volcano. (Francisco Ramos Mejia/AFP/Getty Images)
