| October 31, 1971 |
Map generated by the
Great Circle Mapper -
copyright © Karl L. Swartz.
| Minneapolis/ Saint Paul |
| Wausau/Stevens Point (Central Wisconsin) |
Appleton
Sheboygan
| Chicago O'Hare |
Elkhart
| Lafayette (Purdue Airport) |
Indianapolis
Kokomo
Marion/Wabash
Anderson