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Portage Lake North Pierhead Lighthouse

Fl G 4s🇺🇸Michigan's Western Lower Peninsula, USOperational

Location & Light Range

About Portage Lake North Pierhead Lighthouse

This pierhead lighthouse emits a green light. Its focal height reaches 10 meters above the water. The structure is operational and marks the entrance to Portage Lake. This navigational aid guides mariners along Michigan's Western Lower Peninsula.

Light & Optic

Characteristic Signature
Fl G 4s
Flash Type
Flashing
Light Color
Green
Flash Count
1 flash
Interval
4s
Focal Height
10m

Nearby Vessels

Flag
Type
Name
Dist.

Location

City
Michigan's Western Lower Peninsula
Country
🇺🇸US
Latitude
44.3603°
Longitude
-86.2682°
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Frequently Asked Questions

How do mariners identify Portage Lake North Pierhead Lighthouse at night?+
Portage Lake North Pierhead displays the characteristic Fl G 4s — 1 green flash every 4 seconds. Each lighthouse has a unique flash pattern published in the List of Lights, allowing mariners to positively identify it and distinguish it from other navigation aids in the area. The green color may indicate a specific sector or warning zone.
Which ports and harbors does Portage Lake North Pierhead Lighthouse guide vessels into?+
Portage Lake North Pierhead Lighthouse assists vessels approaching 5 nearby ports. The closest is ONEKAMA at 1.8 NM to the E. Other ports served include MANISTEE (7.2 NM SSW), ARCADIA (7.6 NM N), Frankfort (16.2 NM N), Ludington (26.1 NM SSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Portage Lake North Pierhead Lighthouse still active and maintained?+
Yes, Portage Lake North Pierhead Lighthouse is currently operational. It is actively maintained and continues to emit its characteristic light signal for marine navigation. Most modern lighthouses are automated and monitored remotely by the national maritime authority.
How can I track vessels near Portage Lake North Pierhead Lighthouse?+
You can track vessels near Portage Lake North Pierhead Lighthouse in real time using MarineRadar. The platform shows live AIS positions of ships in the area, including vessel name, type, flag, speed, and course. Use the "Track Vessels Nearby" button on this page to open the live map centered on this lighthouse.