41° 26′ 54″ N 90° 30′ 26″ W
/
590 ft
(180 m MSL)
navigation
315°
42° 56′ 49″ N 87° 53′ 47″ W
/
723 ft
(220 m MSL)
navigation
329°
41° 43′ 30″ N 71° 25′ 32″ W
/
55 ft
(17 m MSL)
navigation
44°
42° 16′ 2″ N 71° 52′ 32″ W
/
1.009 ft
(308 m MSL)
navigation
41°
42° 24′ 7″ N 90° 42′ 34″ W
/
1.077 ft
(328 m MSL)
navigation
317°
42° 55′ 57″ N 71° 26′ 8″ W
/
266 ft
(81 m MSL)
navigation
40°