This series of diagrams explores St. Louis as a Gateway City. JNEM presents only one narrative: that of the city as a gateway to the west. However, there are several other narratives that could be presented at a re-interpreted JNEM.
St. Louis as a Gateway and destination for African Americans following the emancipation (exodusters) and during the Great Migration.
St. Louis is also an ecological gateway: it is a threshold between grassland and forest ecoregions, and a limit of glaciation.