Airport GPZ is Gordon Newstrom Airport, Grand Rapids, Minnesota, USA Grand Rapids, Michigan, is GRR
Similar to GPZ
03MS - Vicksburg Medical Center Heliport, Vicksburg, Mississippi USA03N - Utirik Airport, Utirik, Utirik Island, Marshall Islands
03S - Sandy River Airport, Sandy, Oregon USA
03SC - Seacoast Medical Center Heliport, Little River, South Carolina USA
03Y - former code for Hallock Municipal Airport, Hallock, Minnesota USA
04A - Frank Sikes Airport, Luverne, Alabama USA
04F - De Leon Municipal Airport, De Leon, Texas USA
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