1968 Map of Portage

About this map

The Indiana Dunes National Lakeshore borders the southern rim of Lake Michigan, showcasing the complex transition from protected natural preserves to heavy industrial and transport corridors. This era captures the expansion of Portage and Lake Station, where suburban growth began to surround older crossroads like Crisman and McCool. The map reveals a landscape defined by its infrastructure, where the Little Calumet River and Salt Creek are bisected by an intricate web of railroads including the Conrail, Norfolk And Western, and the South Shore line.