| 1. |  | Shawneetown quadrangle, Illinois-Kentucky : 15 minute series (topographic) | Shawneetown; Kentucky; Maps; Topographic maps; Topography; Illinois | 1 map : col.; Relief shown by contours and spot heights.; "Topography from aerial photographs by photogrammetric methods and by planetable surveys. Aerial photographs taken 1957"; "Contour interval 20... |
