P199 (2021), CC BY-SA 4.0, via Wikimedia Commons
CYSP
Marathon Airport
IFR
navigation
238°
navigation
163°
navigation
177°
navigation
171°
navigation
252°
US-1974
Sparrow Ionia Hospital Heliport
42° 56′ 10″ N 85° 4′ 2″ W
/
815 ft
(248 m MSL)
navigation
171°
44° 8′ 26″ N 81° 1′ 45″ W
/
935 ft
(285 m MSL)
navigation
143°
navigation
313°
CA-0537
Robinson International Air Field
44° 10′ 47″ N 80° 57′ 5″ W
/
942 ft
(287 m MSL)
navigation
142°
navigation
175°
navigation
130°
43° 18′ 42″ N 83° 5′ 27″ W
/
895 ft
(273 m MSL)
navigation
158°
45° 7′ 0″ N 79° 33′ 0″ W
/
742 ft
(226 m MSL)
navigation
130°
44° 31′ 46″ N 80° 21′ 16″ W
/
735 ft
(224 m MSL)
navigation
137°
navigation
137°
43° 0′ 39″ N 88° 14′ 34″ W
/
900 ft
(274 m MSL)
navigation
192°
navigation
197°
42° 59′ 35″ N 84° 33′ 13″ W
/
776 ft
(237 m MSL)
navigation
168°
navigation
145°
navigation
218°
navigation
195°
US-0325
Steam Boat Bay Seaplane Base
46° 23′ 50″ N 94° 22′ 13″ W
/
1.197 ft
(365 m MSL)
navigation
243°