72NH in 20 seconds
Barndoor Island Seaplane Base serves Alton, US.
AirportRoutes · updated Feb 14, 2026
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Common questions about 72NH
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Where is Barndoor Island Seaplane Base located?
Barndoor Island Seaplane Base is located in Alton, US, at an elevation of 504 ft. Its IATA code is — and ICAO code is 72NH.