| 1. |  | Odell quadrangle, Illinois : 15 minute series (topographic). | Odel (Ill.); Illinois; Maps; Topographic maps; Topography | 1 map : col.; Relief shown by contours and spot heights.; "Culture and drainage in part compiled from aerial photographs taken 1951. Topography by planetable surveys 1957-1958."; Includes location map.... |
