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Dunlap Reef Range Rear Lighthouse

Fl G 4s🇺🇸Eastern Wisconsin, USInactive

Location & Light Range

About Dunlap Reef Range Rear Lighthouse

The Dunlap Reef Range Rear light is situated in Eastern Wisconsin. Its focal height measures 10 meters. This light exhibits a green color. It is not currently operational.

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
Eastern Wisconsin
Country
🇺🇸US
Latitude
44.8315°
Longitude
-87.3722°
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Frequently Asked Questions

How do mariners identify Dunlap Reef Range Rear Lighthouse at night?+
Dunlap Reef Range Rear 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 Dunlap Reef Range Rear Lighthouse guide vessels into?+
Dunlap Reef Range Rear Lighthouse assists vessels approaching 5 nearby ports. The closest is STURGEON BAY at 0.6 NM to the WNW. Other ports served include ALGOMA (13.6 NM S), EGG HARBOR (13.7 NM NNE), MENOMINEE (18.9 NM NNW), MARINETTE (19.2 NM NNW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Dunlap Reef Range Rear Lighthouse still active and maintained?+
Dunlap Reef Range Rear Lighthouse is currently listed as inactive. It may have been decommissioned, replaced by a different navigation aid, or temporarily taken out of service. Mariners should check the latest Notices to Mariners for current status.
How can I track vessels near Dunlap Reef Range Rear Lighthouse?+
You can track vessels near Dunlap Reef Range Rear 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.