Porteño Lake () is a lake in Chilean Patagonia.Christy Harvey L. Smith. 1977 Current scientific analysis indicates this surface water body was considerably more extensive in the early Holocene.C. Michael Hogan. 2008
See also Great Tehuelche Paleolake Última Esperanza Sound
References C. Michael Hogan, Cueva del Milodon, The Megalithic Portal, ed. A. Burnham, 13 April, 2008 Christy Harvey L. Smith. 1977. Sedimentology of the Late Cretaceous (Santonian-Maestrichtian) Tres Pasos Formation, Ultima Esperanza District, Southern Chile, Published by University of Wisconsin, 258 pages
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