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Dunlap Reef Range Rear Lighthouse

Fl G 4s🇺🇸Eastern Wisconsin, USInactive

Location & Light Range

About Dunlap Reef Range Rear Lighthouse

Dunlap Reef Range Rear Lighthouse is a maritime navigation aid located in Eastern Wisconsin, US. It is currently listed as inactive and may no longer emit a light signal. The light sits at a focal height of 10 meters above mean sea level.

Light characteristic: The identifying signal of this lighthouse is Fl G 4s. This means the light produces 1 flash every 4 seconds. Mariners use this distinctive pattern to positively identify the light and distinguish it from other aids to navigation in the area. The light color is green, which may indicate a specific sector or warning zone.

Position: Dunlap Reef Range Rear Lighthouse is positioned at 44.8315°N, 87.3722°W, near Eastern Wisconsin in US.

Geographic context: Dunlap Reef Range Rear Lighthouse is situated on the North Pacific Ocean. The location falls within the temperate maritime climate zone.

Nearby lighthouses in US: Other lighthouses in the region include Abagadasset Point Range, Absecon, Admiralty Head Light, Ahukini Breakwater, Alameda County (Oakland Area) Lighthouses. View all on the Lighthouses Directory.

Nearby Ports

STURGEON BAY

USSUE

0.6 NMWNW

ALGOMA

USQAG

13.6 NMS

EGG HARBOR

USGGB

13.7 NMNNE

MENOMINEE

USMNM

18.9 NMNNW

MARINETTE

USMOY

19.2 NMNNW

Flash Characteristics

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

Physical Specifications

Focal Height
10m
Light Range
Not available
Status
INACTIVE
City
Eastern Wisconsin
Country
🇺🇸US
Latitude
44.8315°
Longitude
-87.3722°

Nearby Vessels

Flag
Type
Name
Dist.
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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.