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Green Bay Inner Range Rear Lighthouse

Fl Green 4s🇺🇸Green Bay, USOperational

Location & Light Range

About Green Bay Inner Range Rear Lighthouse

This 15-meter round cylindrical tower, painted red with a white vertical stripe, serves as the rear light for the Green Bay Inner Range. It is mounted on a concrete pier and carries a rectangular daymark matching the tower's colors. The light emits a single green flash every 4 seconds, providing a guiding signal approximately 4 miles north of the Green Bay waterfront. The site is open to the public, though access to the tower is restricted. The Green Bay Inner Range Rear light is located at the mouth of Dead Horse Bay.

Why it matters: As the rear light of an inner range system, this light provides essential alignment for vessels navigating the waters of Dead Horse Bay, ensuring safe passage and supporting maritime traffic.

Light & Optic

Characteristic Signature
Fl Green 4s
Flash Type
Flashing
Light Color
Green
Interval
4s
Raw Code
Fl Y 4s
Focal Height
15m
Geographic Range
11.9NM

Location

City
Green Bay
Country
🇺🇸United States
Region
Wisconsin
Sea Region
Mouth of Dead Horse Bay, approximately 4 miles north of the Green Bay waterfront, serving as the rear light for the Green Bay Inner Range.
Latitude
44.5362°
Longitude
-88.0051°

References & Identifiers

Nearest Port
Green Bay(0.9 km)
USCG No.
7-22220
ARLHS No.
USA-334

Tower & Structure

Tower Height
15m
Tower Shape
cylindrical
Tower Color
red with a white vertical stripe

Structure: A 15m round cylindrical white tower, mounted on a concrete pier, and carrying a rectangular daymark painted red with a white vertical stripe.

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Green Bay Inner Range Rear Lighthouse at night?+
Green Bay Inner Range Rear displays the characteristic Fl Green 4s. 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 Green Bay Inner Range Rear Lighthouse guide vessels into?+
Green Bay Inner Range Rear Lighthouse assists vessels approaching 5 nearby ports. The closest is Green Bay at 1.6 NM to the SSW. Other ports served include De Pere (5.5 NM SSW), Wrightstown (14.9 NM SSW), Kewaunee (22.1 NM ESE), OCONTO (22.2 NM NNE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Green Bay Inner Range Rear Lighthouse still active and maintained?+
Yes, Green Bay Inner Range Rear 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 Green Bay Inner Range Rear Lighthouse?+
You can track vessels near Green Bay Inner 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.