Amtrak routes;Color map of Illinois; Chicago and vicinity, Chicago Metropolitan Expressway System, St. Louis, East St. Louis, Rockford, Bloomington-Normal, Kankakee, Champaign-Urbana, Quincy, Springfield, Danville, Peoria, Decatur.;highways, roads, counties, rivers, lakes, railroads, colleges and universities, state institutions and memorials, cities and villages and their populations, recreational areas, historic sites