Swan Lake Heliport HeliportPrivate
4MI3 · Allegan, MI · Non-towered
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Weather
METAR observed
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TAF forecast
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Sun & FAA night2026-08-07 · night begins 09:28 PM
| Event | Local (EDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 06:11 AM | 10:11Z |
| Sunrise | 06:42 AM | 10:42Z |
| Sunset | 08:57 PM | 00:57Z |
| Evening civil twilight Loggable night begins | 09:28 PM | 01:28Z |
Plan a flight from 4MI3
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Full reports: nearest reporting station
Advisories
Airspace hazards
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Runways
Headings shown are true (magnetic variation unavailable).
| Runway | Length | Your margin |
|---|---|---|
| H1/ | 260 ft |
Prefer one flat page? Full runway details for 4MI3 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the 4MI3 kneeboard →
Comms & NavAids
Nearby navigation aids
VIO 115.95
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| VIO · Victory | VOR/DME | 115.95 · 106Y | High | r231° / 28.7 NM |
Charts & procedures
No published instrument procedures or Chart Supplement for 4MI3 — open it on the VFR sectional →
Airport info
Airport information
- FAA LID
- 4MI3
- Coordinates
- 42.4600, -85.9713
- Elevation
- 700 ft MSL
- Sectional chart
- CHICAGO
- Airport use
- Private
- Control tower
- No
- ARTCC
- CHICAGO (ZAU)
- Flight service (FSS)
- LANSING · 122.2 · 1-800-WX-BRIEF
- Attendance
- UNATNDD
- Segmented circle
- No
- Activated
- 2021/09
- Distance from city
- 7 SW
Ownership & management 2 contacts
Remarks FAA · 2 notes
General
- FOR CD CTC GREAT LAKES APCH AT 269-459-3344, WHEN APCH CLSD CTC CHICAGO ARTCC AT 630-906-8921.
- TFC PAT OPS IN DRCTN TO RMN SOUTH OF 38MI.
Nearby airports
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Also nearby: 38MI Chicora Field (private) (1 NM) · M86 Walle Field (7 NM) · 35D Padgham Field (8 NM) · MI76 Reading Airport (12 NM) · 2C5 Almena Airport (14 NM) · 87MI Ascension Borgess Pipp Hospital Heliport (private) (14 NM)
About 4MI3
Swan Lake Heliport (4MI3) is a heliport in Allegan, MI, at 700 ft MSL. It has 1 runway, the longest 260 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 4MI3, refreshed from the Aviation Weather Center and FAA NASR.
Does 4MI3 have a control tower?
No. Swan Lake Heliport is a non-towered (pilot-controlled) heliport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at 4MI3?
Swan Lake Heliport has 1 runway; the longest is 260 ft. See the Runways section for headings, surface, and lighting.
Where is 4MI3?
Swan Lake Heliport is in Allegan, MI, at an elevation of 700 ft MSL. Coordinates: 42.4600, -85.9713.
Fly out of 4MI3 often?
Save 4MI3 as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.
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 4MI3 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.