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Calcite Incoming Range Rear Lighthouse

Fl White 15s🇺🇸Rogers City, USOperational

This 37-meter square brick tower, operational since becoming active, is integrated into a larger building. Its white light flashes once every 15 seconds, positioned on the side of the structure. It forms the rear component of an incoming range system, assisting vessels approaching the Michigan Limestone and Chemical Company's mining complex. The light's geographic range extends to 15.9 nautical miles. The tower's focal height reaches 33.5 meters above sea level.

Why it matters: As the rear range light, it provides precise alignment for ships entering the complex, helping them avoid potential hazards and facilitating efficient maritime transport for the region's limestone industry.

Characteristic Signature
Fl White 15s
Flash Type
Flashing
Light Color
White
Interval
15s
Raw Code
Fl W 15s
Focal Height
33.5m
Geographic Range
15.9NM
City
Rogers City
Country
🇺🇸United States
Region
Michigan
Sea Region
This rear range light guides vessels approaching the Michigan Limestone and Chemical Company's mining complex, likely situated on one of the Great Lakes.
Latitude
45.4098°
Longitude
-83.7866°
Nearest Port
Calcite(0.3 km)
USCG No.
7-11635
ARLHS No.
USA-667
Tower Height
37m
Tower Shape
square
Material
brick

Structure: A 37m square brick tower, integrated into a larger building, with its light positioned on the side.

Open to public
Yes
Flag
Type
Name
Dist.
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How do mariners identify Calcite Incoming Range Rear Lighthouse at night?+
Calcite Incoming Range Rear displays the characteristic Fl White 15s. 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 white color may indicate a specific sector or warning zone.
Which ports and harbors does Calcite Incoming Range Rear Lighthouse guide vessels into?+
Calcite Incoming Range Rear Lighthouse assists vessels approaching 5 nearby ports. The closest is Calcite at 0.5 NM to the ENE. Other ports served include Rogers City (1.3 NM NW), PRESQUE ISLE (13.4 NM ESE), ALPENA (25.9 NM SE), CHEBOYGAN (32.1 NM WNW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Calcite Incoming Range Rear Lighthouse still active and maintained?+
Yes, Calcite Incoming 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 Calcite Incoming Range Rear Lighthouse?+
You can track vessels near Calcite Incoming 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.