| 1. |  | Illinois (Henry County) Geneseo quadrangle | Illinois; Maps; Topographic maps; Topography; Geneseo (Ill.); Henry County (Ill.) | 1 map : col.; "Culture and drainage in part compiled from aerial photographs taken by Air Corps, U.S. Army."; "Surveyed in 1931 and 1932."; Contour interval 10 feet. Coordinates: (W 90⁰15’00"--W 90⁰00’00"/N... |
