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December 15, 2011
Glaciar Gualas Retreat lake expansion, Patagonia, Chile
Glaciar Gualas drains from the northwest portion of the Northern Patagonia Icefield (NPI) into a rapidly expanding new lake Laguna Gualas. There is a spectacular icefall (I) where the glacier descends from the main NPI from 1600 m to 900 m, which is below the equilibrium line. Below this point the Gualas has a 2 km wide, 15 km long valley reach extending to the terminus which currently has a …