0G5 in 20 seconds
Grand Marais/Cook County Seaplane Base serves Grand Marais, US.
AirportRoutes · updated Mar 21, 2026
Traveler reviews & tips
From people who've recently flown through Grand Marais.
Rate this airport:
No tips for 0G5 yet — be the first to help fellow travelers.
Share your tip or review
Help fellow travelers at Grand Marais/Cook County Seaplane Base. Tips are reviewed before publishing.
Common questions about 0G5
Quick answers, straight from the schedule data.
Where is Grand Marais/Cook County Seaplane Base located?
Grand Marais/Cook County Seaplane Base is located in Grand Marais, US, at an elevation of 1635 ft. Its IATA code is — and ICAO code is 0G5.