41° 47′ 9″ N 87° 45′ 8″ W
/
620 ft
(189 m MSL)
navigation
42°
41° 58′ 42″ N 87° 54′ 17″ W
/
672 ft
(205 m MSL)
navigation
40°
43° 8′ 23″ N 89° 20′ 15″ W
/
887 ft
(270 m MSL)
navigation
32°
24° 7′ 27″ N 104° 31′ 40″ W
/
6.104 ft
(1.860 m MSL)
navigation
215°
42° 56′ 49″ N 87° 53′ 47″ W
/
723 ft
(220 m MSL)
navigation
37°