Lago Porteño ("Port Lake") is a lake in PatagonianChile.[1] Current scientific analysis indicates this surface water body was considerably more extensive in the early Holocene.[2]
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