Airports 501 to 550
Jorgensen's Landing Seaplane Base
Grygla Municipal Airport - Mel Wilkens Field
Fairview Ridges Hospital Heliport
Marty's Tranquility Base
Thief River Falls Regional Airport
Thief River Falls, Minnesota, United States — 220 km (119 nm) NW
Ridgeview Sibley Medical Center Heliport
Ortonville Municipal Airport/Martinson Field
Lake Kabetogama Area Fire Department Heliport
Ortonville Hospital Heliport
Ortonville Hospital Heliport, Minnesota, United States — 223 km (120 nm) SW