Referenced by Selection: Preliminary City Plan of Chicago, 1946 Your Browser doesn't support iframes. Geographic Area Covered: Illinois--Chicago Region Geographic Coordinates: (W 87°53ʹ20ʺ--W 87°28ʹ35ʺ/N 42°02ʹ05ʺ--N 41°37ʹ55ʺ) View on Google Maps Your Browser doesn't support iframes. Your Browser doesn't support iframes. Your Browser doesn't support iframes. Your Browser doesn't support iframes.