This section of the combined base map for this level shows the joining of both the Minnesota (St. Peter) and St. Croix Rivers with the Mississippi. Click the "1840" button to see the information published on Joseph Nicollet's "mother map" about this key geography. Click on an area to zoom in. Navigate using the arrows in the map margin.

This is the south central area of the present nine overlapping panels of the base map. Zooming further into the "deep map" in the area of downtown Saint Paul and the riverbend will make available a portal to drill down further into even deeper layers. It is the only such portal for now. More will be added in the future, for other geographic areas.