Great Lakes Seaplane Base

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Location

Latitude: 
 42-27-59.5700N (42.466547)
Longitude: 
 088-07-58.2100W (-88.132836)
Elevation: 
 737.0 feet MSL (225 m MSL)
Magnetic Variation: 
 3.9 W (as of December 2025 from WMM2020 model)
Time Zone: 
 UTC -6.0 (Standard Time)
UTC -5.0 (Daylight Savings Time)
From City: 
 02 N.M. WSW of Antioch, Illinois
Found On: 
 Chicago Chart
FAA Region: 
 AGL

Contacts

Manager: 
Privately owned: 
TRENT TOBIAS
41072 N. WESTLAKE
ANTIOCH, IL 60002
847-812-1480		 TRENT TOBIAS
41072 N. WESTLAKE
ANTIOCH, IL 60002
847-812-1480

Operations

Airport Status: 
 Operational
Facility Use: 
 Private
Type: 
 Seaplane Base
Activation Date: 
 04/2022
Control tower: 
 No
Boundary ARTCC: 
 ZAU (Chicago)
Responsible ARTCC: 
 ZAU (Chicago)
Traffic Pattern Altitude (MSL): 
 1737 feet (529 m)

Based Aircraft

Annual Operations (as of )

Communications

       

    Fixed Based Operators (FBOs) & Fuel

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    Flight Service Stations

    Primary Alternate
    FSS on Field: 
    FSS Name (ID):  Kankakee(IKK)
    Frequency: 
    Toll Free Phone:  1-800-WX-BRIEF

    Instrument Procedures / Charts

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    Navigation Aids (Navaids) near 41IL

    Navigational Aid (NAVAID) distances from the airport are listed in Nautical Miles (NM).

    Nearby Airports with Fuel

    Dist (NM) Name (Airport IDs) True Hdg Mag Hdg Fuel Grade
    8.9 Campbell Airport
    (C81)    		 162 166 100LL
    11.4 Galt Field Airport
    (10C)    		 250 254 100LL
    12.0 Kenosha Regional Airport
    (ENW KENW ENW)    		 49 53 100LL, Jet A
    12.0 Waukegan Ntl Airport
    (UGN KUGN UGN)    		 102 106 100LL, Jet A
    14.4 Grand Geneva Resort Airport
    (C02)    		 308 312 100LL, Jet A
    15.4 Burlington Municipal Airport
    (KBUU BUU)    		 330 334 100LL, Jet A+
    16.1 Sylvania Airport
    (C89)    		 28 32 100LL
    17.7 Lake In The Hills Airport
    (3CK)    		 208 212 100LL, Jet A
    20.8 Cindy Guntly Meml Airport
    (62C)    		 4 8 100LL, Mogas
    22.5 Dacy Airport
    (0C0)    		 260 264 100LL
    22.5 East Troy Municipal Airport
    (57C)    		 331 335 100LL, Jet A+
    22.6 Batten International Airport
    (RAC KRAC RAC)    		 38 42 100LL, Jet A, Jet A+
    23.5 Chicago Exec Airport
    (PWK KPWK PWK)    		 154 158 100LL, Jet A-1+
    28.7 Schaumburg Regional Airport
    (06C)    		 177 181 100LL, Jet A
    30.6 General Mitchell International Airport
    (MKE KMKE MKE)    		 19 23 100LL, Jet A
    31.0 Chicago O'hare International Airport
    (ORD KORD ORD)    		 161 165 100LL, Jet A
    32.3 Poplar Grove Airport
    (C77)    		 254 257 100LL
    34.0 Dupage Airport
    (DPA KDPA DPA)    		 188 192 100LL, Jet A
    34.8 Waukesha County Airport
    (UES KUES UES)    		 352 356 100LL, Jet A+
    37.0 Beloit Airport
    (44C)    		 273 276 100LL

    Notices to Airmen (NOTAMS)

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    Remarks

    A16 FLOAT172@GMAIL.COM

    Runways

    Runway Summary

    Runways: 03W/21W
    Longest Runway: 03W/21W is 3451 ft (1052 m) long
    Runways with an Instrument Approach:

    41IL Airport Runway Details

    Runway 03W/21W  3451 ft x 400 ft (1052 m x 122 m)
    Runway Length Source:  OWNER as of 04/05/2022
    Surface:  Water - Fair condition - No special surface treatment

    Runway 03W

    Runway 21W
    Elevation: 
    		 737.0 737.0
    Latitude: 
    		 42-27-44.1400N 42-28-15.0300N
    Longitude: 
    		 088-08-07.9900W 088-07-48.5100W
    Glide Path Angle: 
    		 0.0 degrees 0.0 degrees

    Services

    Airframe Repair: 
    		 None
    Powerplant Repair: 
    		 None
    Bottled Oxygen: 
    		 None
    Bulk Oxygen: 
    		 None
    Fuel Available: 
    		 100LL
    Landing Fees: 
    		 No
    Parking: 
    		 Hangars and tiedowns available

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    Maps & Diagrams

    41IL Sectional

    Flight Planning
    at skyvector.com

    41IL Diagram


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