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Holcim Channel Range Rear Lighthouse

Fl Red 5s🇺🇸Alpena, USOperational

Location & Light Range

About Holcim Channel Range Rear Lighthouse

This steel, skeletal tower stands 31 meters tall and is painted red with an orange and white striped daymark. Its focal height is 33 meters, and it emits a red flash every 5 seconds. The structure is located 233 yards north of its front range light, within the Laforge Alpena cement plant. It has a geographic range of 15.9 nautical miles. This range light is a privately maintained structure.

Why it matters: This rear range light is critical for guiding commercial vessels through the Holcim Channel, providing precise alignment for ships navigating the busy industrial waterway.

Light & Optic

Characteristic Signature
Fl Red 5s
Flash Type
Flashing
Light Color
Red
Interval
5s
Raw Code
Fl R 5s
Focal Height
33m
Geographic Range
15.9NM

Location

City
Alpena
Country
🇺🇸United States
Region
Michigan
Sea Region
Located 233 yards north of the front light in the Laforge Alpena cement plant.
Latitude
45.0705°
Longitude
-83.4094°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
31m
Tower Shape
skeletal
Tower Color
red
Material
steel

Structure: A 31m triangular skeletal tower with an orange and white striped daymark.

References & Identifiers

Nearest Port
Alpena(0.3 km)
USCG No.
7-11387
ARLHS No.
USA-007
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Frequently Asked Questions

How do mariners identify Holcim Channel Range Rear Lighthouse at night?+
Holcim Channel Range Rear displays the characteristic Fl Red 5s. 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Holcim Channel Range Rear Lighthouse guide vessels into?+
Holcim Channel Range Rear Lighthouse assists vessels approaching 5 nearby ports. The closest is ALPENA at 0.7 NM to the SW. Other ports served include PRESQUE ISLE (16.5 NM N), HARRISVILLE (25.2 NM SSE), Calcite (25.7 NM NW), Rogers City (27.1 NM NW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Holcim Channel Range Rear Lighthouse still active and maintained?+
Yes, Holcim Channel 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 Holcim Channel Range Rear Lighthouse?+
You can track vessels near Holcim Channel 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.