| May 15, 1983 |
Map generated by the
Great Circle Mapper -
copyright © Karl L. Swartz.
| American Central Airlines |
Cadillac
Manistee
Marshfield
Wisconsin Rapids
Sheboygan
| Chicago O'Hare |
| Beloit/ Janesville |
Clinton
Dubuque
| Minneapolis/ Saint Paul |
Lincoln
Omaha
| Sioux City |
Rochester
| Mason City |
Ottumwa
Des Moines
Waterloo
Cedar Rapids
Moline