Grand Marais/Cook County Seaplane Base
0G5 · Grand Marais, MN · Non-towered · Open on the map
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Weather
METAR observed
TAF forecast
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Sun & FAA night2026-09-21 · night begins 07:33 PM
| Event | Local (CDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 06:16 AM | 11:16Z |
| Sunrise | 06:47 AM | 11:47Z |
| Sunset | 07:02 PM | 00:02Z |
| Evening civil twilight Loggable night begins | 07:33 PM | 00:33Z |
Plan a flight from 0G5
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Full reports: nearest reporting station
Advisories
NOTAMs · Loading NOTAMs…
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Airspace hazards · Checking SIGMETs and G-AIRMETs…
Temporary flight restrictions · Checking for TFRs…
Runways
| Runway | Length | Your margin |
|---|---|---|
| 09W/27W | 15,000 ft | |
| 03W/21W | 3,000 ft |
Prefer one flat page? Full runway details for 0G5 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the 0G5 kneeboard →
Comms & NavAids
Communication frequencies
Taxi & takeoff
Source: FAA NASR (current 28-day cycle).
Prefer one flat list? All 0G5 frequencies →
Charts & procedures
Airport info
Airport information
- FAA LID
- 0G5
- Coordinates
- 47.8228, -90.4073
- Elevation
- 1,635 ft MSL
- Magnetic variation
- 0W
- Sectional chart
- GREEN BAY
- Airport use
- Public
- Control tower
- No
- ARTCC
- MINNEAPOLIS (ZMP)
- Flight service (FSS)
- PRINCETON · 122.2 · 1-800-WX-BRIEF
- NOTAM facility
- PNM
- Attendance
- UNATNDD
- Segmented circle
- No
- Activated
- 1947/09
- Distance from city
- 6 NW
Night operations
- Pilot-controlled lighting
- Usually keyed on CTAF 122.8 — confirm the click sequence in the Chart Supplement ↗
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are under Sun & FAA night in the Weather section.
Services fuel · repairs · oxygen · attendance
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- MAJOR
- Powerplant service
- MAJOR
- Parking
- tiedowns
- Other services
- BCHGR
Ownership & management 2 contacts
Remarks FAA · 3 notes
General
- CUSTOMS AVBL, MAY-OCT; CALL 218-475-2244.
- FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.
Contact
- AFTER HOURS CONTACT 218-387-2012
Nearby airports
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Also nearby: 83MN Loon Lake (private) (19 NM) · M56 Gunflint Lodge (21 NM) · WS19 Petit Cache (private) (58 NM) · 6MY8 USFS (private) (60 NM)
About 0G5
Grand Marais/Cook County (0G5) is a seaplane base in Grand Marais, MN, at 1,635 ft MSL. It has 2 runways, the longest 15,000 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 0G5, refreshed from the Aviation Weather Center and FAA NASR.
Does 0G5 have a control tower?
No. Grand Marais/Cook County is a non-towered (pilot-controlled) seaplane base; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at 0G5?
Grand Marais/Cook County has 2 runways; the longest is 15,000 ft. See the Runways section for headings, surface, and lighting.
Where is 0G5?
Grand Marais/Cook County is in Grand Marais, MN, at an elevation of 1,635 ft MSL. Coordinates: 47.8228, -90.4073.
More about 0G5
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open 0G5 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.
Something here wrong or out of date? Report a data problem.