| 1. |  | Illinois (Shelby Co.), Shelbyville quadrangle : 15-minute series | Shelbyville (Ill.); Shelby County (Ill.); Maps; Topographic maps; Topography; Illinois | 1 map : col.; Relief shown by contours and spot heights.; "Mapped by the Geological Survey 1928, 1935 and 1942"; "Contour interval 20 feet." |