ICAO		IATA		Other		Location
KGGI				GGI		Grinnell [Grinnell Regional], Iowa, US (85 mi / 137 km W)
				97IL		Canton [Graham Hospital Heliport], Illinois, US (85 mi / 137 km SE)
				IA09		Grinnell [Grinnell Regional Medical Center Heliport], Iowa, US (86 mi / 138 km W)
				4K6		Bloomfield [Muni], Iowa, US (86 mi / 138 km SW)
				84IL		Stockton [Bud Pierce Memorial Airport], Illinois, US (86 mi / 138 km NE)
				LL08		Princeton [Advanced Asphalt Heliport], Illinois, US (86 mi / 138 km E)
				IS67		Princeton [Osf St. Clare Hospital Heliport], Illinois, US (87 mi / 140 km E)
				10IA		Waterloo [Flyers Airport], Iowa, US (87 mi / 140 km NW)
				00IL		Polo [Hammer Airport], Illinois, US (88 mi / 141 km NE)
				IL58		Princeton [Jonathan and Julianne Mabry Heliport], Illinois, US (88 mi / 142 km E)
				LL55		Polo [Gentry Airport], Illinois, US (88 mi / 142 km NE)
				IA42		Hudson [Ritel Copter Airstrip], Iowa, US (88 mi / 142 km NW)
				99IA		Eddyville [Courtney's Landing Airport], Iowa, US (88 mi / 142 km W)
				53IL		Tiskilwa [Steil Airport], Illinois, US (88 mi / 142 km E)
				49IS		Dixon [Katherine Shaw Bethea Hospital Heliport], Illinois, US (89 mi / 142 km E)
				MO82		Gorin [Howard Airport], Missouri, US (89 mi / 143 km SW)
				2IL0		Shannon [Woodley North Airport], Illinois, US (89 mi / 143 km NE)
				78IL		Dixon [Dixon Correctional Center Heliport], Illinois, US (89 mi / 143 km E)
				6IL0		Peoria [Hoerr RLA Airport], Illinois, US (90 mi / 144 km SE)
				8C2		Sully [Muni], Iowa, US (90 mi / 144 km W)