Laguna del Desierto incident Laguna del Desierto region, the tribunal set the "hito 62" (cornerstone 62) at the O'Higgins/San Martin Lake and draw the boundary from there to mount Fitz Roy on the Martínez de Rozas Range awarding Chile the complete valley of Laguna del Desierto. In 1946 an aerial reconnaissance of the United States Air Force, ordered by the Chilean government, revealed that the lake emptied to the Atlantic shores. Chile and Argentina have to redraw its maps. The initially organized labour support for 1963 elected Argentine President Arturo Illia turned to antagonism during 1964, as secret plans for Juan Domingo Perón's return
Laguna del Maule (volcano) the uplift rate was . This uplift is one of the largest in all volcanoes which are not in eruption; the strongest uplift worldwide was recorded during 1982–84 at Campi Flegrei in Italy with an end change of . Other actively deforming dormant volcanoes in the world are Lazufre also in Chile, Santorini in Greece during 2011–12, and Yellowstone in the United States at a rate of 1/7th that of Laguna del Maule. Another South American volcano, Uturunku in Bolivia has been inflating at a pace 1/10th that of Laguna del Maule's. There is evidence that earlier deformations occurred at