Great Lakes Seaplane Base
Daylight today(Oct 21, 2026, local time)
About 10h 49m of daylight. Civil twilight (dawn/dusk) approximates the FAA definition of night for logging and currency. Times are computed and approximate — verify with official sources.
About Great Lakes Seaplane Base
Great Lakes Seaplane Base is a seaplane base in Antioch, United States. It sits at an elevation of 737 ft (225 m) and has 1 runway, the longest 3,451 ft / 1,052 m. It observes America/Chicago local time. The nearest airport is Midland Airport (50IL), about 2.3 nm to the nw.
Summary generated from this airport’s structured data — reference only.
Live traffic nearby
Aircraft currently within ~40 nm, from live ADS-B. Positions are approximately real-time — not for navigation.
Live ADS-B by adsb.lol & the OpenSky Network. Not for navigation.
Map
Runway centrelines, navaids and overlapping airspace. Tiles © OpenStreetMap contributors. Reference only — not for navigation.
Runways (1)
| Runway | Length | Width | Surface | Lighting | Status |
|---|---|---|---|---|---|
| 3W / 21W | 3,451 ft / 1,052 m | 400 ft | Wat | Unlit | Open |
Tall obstacles nearby
| Obstacle | Height AGL | Top (MSL) | Lit |
|---|---|---|---|
| Obstacle | 394 ft | 853 ft | — |
| Obstacle | 348 ft | 840 ft | — |
| Obstacle | 269 ft | 755 ft | — |
| Obstacle | — | 702 ft | — |
| Obstacle | — | 692 ft | — |
| Obstacle | — | 692 ft | — |
| Obstacle | — | 692 ft | — |
Tallest obstacles within ~10 nm. Data via OpenAIP. Reference only — consult official charts.
Nearby airports
Great-circle distance and true bearing from Great Lakes Seaplane Base.
Frequently asked questions
Where is Great Lakes Seaplane Base located?
Great Lakes Seaplane Base is seaplane base located in Antioch, United States, at an elevation of 737 ft (225 m).
How many runways does Great Lakes Seaplane Base have?
Great Lakes Seaplane Base has 1 runway, the longest being 3,451 ft / 1,052 m.
What time zone is Great Lakes Seaplane Base in?
Great Lakes Seaplane Base is in the America/Chicago time zone (UTC-05:00).
What is the magnetic variation at Great Lakes Seaplane Base?
The magnetic variation (declination) at Great Lakes Seaplane Base is approximately 3.9° W, per the World Magnetic Model. Variation changes slowly over time — always use the current value charted for navigation.
What airports are near Great Lakes Seaplane Base?
The nearest airport to Great Lakes Seaplane Base is Midland Airport (50IL), about 2.3 nm to the nw, followed by Pillow Hill Airport and Camp Lake Airport.
Is the information on this page suitable for flight planning?
No. Great Lakes Seaplane Base data here is for reference and training only — not for navigation. Always consult official sources and current charts before any flight.