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) well-preserved lava flow is in the extreme southwestern sector of the volcanic field. This lava flow is long and thick. This area of the Andes was subject to glaciation in the past, which has left traces especially in adjacent valleys. These valleys are U-shaped or have the form of a trench, shapes associated with glacial action. The older volcanics of Laguna del Maule have been disproportionately eroded by glacial action. Slopes around Laguna del Maule are covered by colluvium including talus slopes. The Laguna del Maule lake is not the only lake in the field. The other lakes are Laguna