evidence: Upsala Glacier in the Southern Patagonian Icefield calves icebergs into Lake Argentina in this astronaut photo from October 25, 2009. Read more... This astronaut photograph shows the merged outlet of two glaciers within the deep fjords of the Southern Patagonian Icefield. Read more... Outside of Antarctica, the largest contiguous icefield in the Southern Hemisphere is the Southern Patagonian Icefield in the Andes Mountains of Chile and Argentina. Read more...