29C
Grindstone Air Harbor Airport
VFR
44° 59′ 18″ N 85° 11′ 54″ W
/
623 ft
(190 m MSL)
navigation
299°
navigation
122°
43° 52′ 43″ N 85° 31′ 11″ W
/
1.065 ft
(325 m MSL)
navigation
263°
navigation
321°
navigation
98°
navigation
103°
US-5906
Winfield Landing Seaplane Base
43° 23′ 5″ N 85° 22′ 7″ W
/
913 ft
(278 m MSL)
navigation
248°
44° 31′ 46″ N 80° 21′ 16″ W
/
735 ft
(224 m MSL)
navigation
76°
navigation
259°
43° 18′ 20″ N 80° 29′ 57″ W
/
970 ft
(296 m MSL)
navigation
113°
navigation
96°
45° 7′ 51″ N 85° 6′ 28″ W
/
642 ft
(196 m MSL)
navigation
303°
navigation
165°
navigation
96°
navigation
92°
navigation
189°
navigation
233°
navigation
255°
US-1974
Sparrow Ionia Hospital Heliport
42° 56′ 10″ N 85° 4′ 2″ W
/
815 ft
(248 m MSL)
navigation
233°
navigation
174°
navigation
100°
43° 8′ 32″ N 85° 15′ 13″ W
/
855 ft
(261 m MSL)
navigation
241°