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1963 Map of Sag Bridge

Name: 1963 Topographic Map of Sag Bridge
Creator: U.S. Geological Survey
Published: 1964
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1964

About this map

The Chicago Sanitary and Ship Canal and the Illinois and Michigan Canal dominate this 1963 landscape, cutting a industrial corridor through the Palos Forest Preserve. This intersection of heavy transport and protected woodland is further defined by the Argonne National Laboratory Reservation, which occupies a large tract of land west of the Des Plaines River.

Genealogists and local historians can find numerous landmarks, from the Mount Vernon Memorial Park to institutions like St Marys Seminary and Mt Assisi Academy. The map documents the expansion of suburban communities such as Willow Springs and Lemont during the early 1960s. The marshy terrain is particularly well-detailed, showing named wetlands like Saganashkee Slough and Bull Frog Lake, alongside the active industrial presence of several quarries near the Calumet Sag Channel.