Great Lakes Seaplane Base (41IL) — Antioch, IL

Great Lakes Seaplane Base (41IL)
41IL
Great Lakes Seaplane Base (41IL)
Antioch, IL
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Great Lakes Seaplane Base (41IL) is a private-use seaplane base located in Antioch, IL. The airport sits at an elevation of 737 feet above mean sea level. It features 1 runway.

Location & QuickFacts
FAA Information Effective 2026-09-03
Airport Identifier 41IL
Airport Status Operational
Longitude/Latitude 88°7'58.2100" W / 42°27'59.5700" N
-88.132836 / 42.466547 (Estimated)
Elevation 737.00 ft / 224.64 m ()
From nearest city 2 nautical miles WSW of Antioch, IL
Location Lake County, IL
Owner & Manager
Ownership Privately owned
Owner TRENT TOBIAS
Address 41072 N. WESTLAKE
ANTIOCH, IL 60002
Phone number 847-812-1480
Manager TRENT TOBIAS
Address 41072 N. WESTLAKE
ANTIOCH, IL 60002
Phone number 847-812-1480
Airport Operations and Facilities
Airport Use Private
Control Tower NON-ATCT
Sectional chart CHICAGO
Region AGL - Great Lakes
Responsible ARTCC ZAU - CHICAGO
Tie-in FSS IKK - KANKAKEE
FSS Toll Free 1-800-WX-BRIEF
Runway Information
Runway 03W/21W
Dimensions 3451 x 400 ft (1052 x 122 m)
Surface WATER (FAIR)
Surface treatment
03W 21W
Physical elevation 737.00 ft 737.00 ft
Coordinates 42.462261 / -88.135553 42.470842 / -88.130142
Traffic pattern Left Left