| 1. |  | Rising quadrangle: Illinois -- Champaign Co., 1970; 7.5 Minute series (Topographic); NE/4 Mahomet 15' quadrangle. | Maps, 20th century; Topographic maps; 7.5-minute quadrangles; Champaign County (Ill.); Roads; Cities and towns; Culture | Color 7.5 Minute series (topographic) Rising quadrangle; Roads, waterways, major public works, railroads, land and cultural features; Sectional grid; Spatial references; Relief shown by contours and spot... |
