Cook County GIS Dept map of Jefferson, Norwood Park & West Townships in a pdf format. Includes streets and municipalities.

Cook County GIS Dept map of Leyden, Norwood Park & Jefferson Townships in a pdf format. Includes streets and municipalities.

Cook County GIS Dept map of Maine and Jefferson Township in a pdf format. Includes streets and municipalities.

Cook County GIS Dept map of Elk Grove and Jefferson Township in a pdf format. Includes streets and municipalities.

Cook County GIS Dept map of Hanover Township in a pdf format. Includes streets and municipalities.

Cook County GIS Dept map of Schaumburg Township in a pdf format. Includes streets and municipalities.

Cook County GIS Dept map of New Trier and Evanston Townships in a pdf format. Includes streets and municipalities.

Cook County GIS Dept map of Northfield and New Trier Townships in a pdf format. Includes streets and municipalities.

Cook County GIS Dept map of Wheeling Township in a pdf format. Includes streets and municipalities.

The PLSS data is modeled as a single composite network coverage that encompasses townships (area), sections (subarea), quarter sections, and half quarter section. If an indigenous people's reserve was present on the tax map, it was digitized to create subpolygons of the half-quarter section, and those polygons were attributed with the name of the reserve. Within this PLSS data set, a half-quarter section is the smallest polygon unit, except in cases where an Indigenous People's Reserve line is present.