Cass Lake-Cove Island Seaplane Base

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METAR: METAR KPTK 051753Z 22010G16KT 10SM BKN038 OVC210 M04/M13 A2992 RMK AO2 SLP150 T10441128 11044 21167 58025

TAF: TAF KPTK 051738Z 0518/0618 22010G18KT P6SM OVC040 FM052200 21010KT P6SM BKN040 FM060600 22012KT P6SM FEW025 OVC040 FM061000 23011KT P6SM OVC025 FM061600 27009KT P6SM OVC015

Reporting Station: KPTK (3.7 NM at True Heading of 319)
Visibility: 10+SM
Flight Category: VFR
Altimeter: 1013.3
Temperature: -4.4 C (24.08 F)
Dewpoint: -12.8 C (8.96 F)

Location

Latitude: 
42-36-58.1170N (42.616144)
Longitude: 
083-21-21.7710W (-83.356048)
Elevation: 
990.0 feet MSL (302 m MSL)
Magnetic Variation: 
7.4 W (as of December 2025 from WMM2020 model)
Time Zone: 
UTC -5.0 (Standard Time)
UTC -4.0 (Daylight Savings Time)
From City: 
04 N.M. W of Pontiac, Michigan
Found On: 
Detroit Chart
FAA Region: 
AGL

Contacts

Manager: 
Privately owned: 
CONNIE HYNES
560 SCOTTS BAY DR
INDIAN RIVER, MI 99749
231-844-2147
CONNIE HYNES
560 SCOTTS BAY DR
INDIAN RIVER, MI 99749
231-844-2147

Operations

Airport Status: 
Operational
Facility Use: 
Private
Type: 
Seaplane Base
Activation Date: 
03/1994
Control tower: 
No
Attendance (Months/Days/Hours): 
Months/Days/Hours
Unattended
Boundary ARTCC: 
ZOB (Cleveland)
Responsible ARTCC: 
ZOB (Cleveland)
Segmented Circle Indicator: 
No
Traffic Pattern Altitude (MSL): 
1990 feet (607 m)
NOTAM-D Service: 
No

Based Aircraft

Annual Operations (as of )

Communications

       

    Fixed Based Operators (FBOs) & Fuel

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    Area Code: 313

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    Flight Service Stations

    Primary Alternate
    FSS on Field:  N
    FSS Name (ID):  Lansing(LAN)
    Frequency: 
    Toll Free Phone:  1-800-WX-BRIEF

    Instrument Procedures / Charts

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    Navigation Aids (Navaids) near 51MI

    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
    4.1 Oakland County International Airport
    (PTK KPTK PTK)
    316 323 100LL, Jet A
    9.0 Oakland/Troy Airport
    (KVLL VLL)
    119 127 100LL, Jet A+
    16.7 Canton-Plymouth-Mettetal Airport
    (1D2)
    195 202 100LL
    19.6 Coleman A Young Municipal Airport
    (DET KDET DET)
    128 136 100LL, Jet A
    20.0 Romeo State Airport
    (D98)
    57 65 100LL, Jet A
    21.5 Prices Airport
    (9G2)
    302 309 100LL
    21.8 Ray Community Airport
    (57D)
    70 78 100LL
    23.9 Willow Run Airport
    (YIP KYIP YIP)
    199 206 100LL, Jet A
    24.2 Detroit Metro Wayne County Airport
    (DTW KDTW DTW)
    179 186 100LL, Jet A
    27.1 Bishop International Airport
    (FNT KFNT FNT)
    320 327 100LL, Jet A
    27.3 Dupont/Lapeer Airport
    (D95)
    7 15 100LL, Jet A+
    27.6 Belleville Airport
    (43G)
    197 204 100LL
    27.7 Livingston County Spencer J Hardy Airport
    (KOZW OZW)
    271 278 100LL, Jet A, Jet A+
    29.2 Ann Arbor Municipal Airport
    (ARB KARB ARB)
    216 223 100LL, Jet A+
    31.7 Maple Grove Airport
    (65G)
    281 288 80, 100LL
    32.2 Grosse Ile Municipal Airport
    (KONZ ONZ)
    164 171 100LL, Jet A
    34.1 Marine City Airport
    (76G)
    79 87 100LL
    39.1 Rossettie Airport
    (75G)
    230 237 UL94
    40.5 St Clair County International Airport
    (PHN KPHN PHN)
    63 71 100LL, Jet A+
    40.7 Custer Airport
    (KTTF TTF)
    184 191 100LL

    Notices to Airmen (NOTAMS)

    NOTAMs

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    NM of 51MI

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    Remarks

    A110-1 TAKEOFFS & LANDINGS RESTRICTED IN COES BAY; USE LARGE PORTION OF CASS LAKE FOR TAKEOFFS & LANDINGS; STEP TAXI PERMITTED IN COES BAY TO RAMP ON COVE ISLAND.
    A110-2 FOR CD CTC DETROIT APCH AT 734-955-1404.

    Runways

    Runway Summary

    Runways: 09W/27W
    Longest Runway: 09W/27W is 2000 ft (610 m) long
    Runways with an Instrument Approach:

    51MI Airport Runway Details

    Waterway 09W/27W  2000 ft x 100 ft (610 m x 30 m)
    Surface:  Water - No special surface treatment

    Waterway 09W

    Runway 27W

    Glide Path Angle: 
    0.0 degrees 0.0 degrees

    Services

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

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    Maps & Diagrams

    51MI Sectional

    Flight Planning
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    51MI Diagram


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