Airports 4,151 to 4,200
Houston County Airport
Mayo Clinic Health System-Franciscan Healthcare Heliport
Lutheran Hospital - La Crosse Heliport
Malheur National Wildlife Refuge Airport
Grundy Center Municipal Airport
Grundy County Memorial Hospital Heliport
MercyOne Cedar Falls Medical Center Heliport
Waterloo Regional Airport
Gundersen Palmer Lutheran Hospital Heliport
Marshalltown Municipal Airport