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Nanaura Kō Range Rear Lighthouse

F Green🇯🇵Minamiboso, JPOperational

Location & Light Range

About Nanaura Kō Range Rear Lighthouse

This 12-meter cylindrical concrete post, painted white, stands on a hillside overlooking Nanaura harbor. It features a square, 1-story concrete equipment shelter. The structure's focal height reaches 15 meters, and it emits a continuous green light with a geographic range of 11.9 nautical miles. The site is open to visitors, though the tower itself is closed to the public. This light operates in conjunction with a front range light to establish a navigational line.

Why it matters: The Nanaura Kō Range Rear light is essential for guiding vessels into Nanaura harbor by providing a precise alignment with its paired front light, ensuring safe passage through the approach channel.

Light & Optic

Characteristic Signature
F Green
Flash Type
Fixed
Light Color
Green
Raw Code
F G
Focal Height
15m
Geographic Range
11.9NM

Location

City
Minamiboso
Country
🇯🇵Japan
Region
Chiba Prefecture
Sea Region
Nanaura harbor
Latitude
34.9147°
Longitude
139.9354°

References & Identifiers

Nearest Port
Tateyama(6.2 km)

Tower & Structure

Tower Height
12m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: A 12m cylindrical concrete post with a square 1-story concrete equipment shelter, painted white.

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 Nanaura Kō Range Rear Lighthouse at night?+
Nanaura Kō Range Rear displays the characteristic F Green. 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 Nanaura Kō Range Rear Lighthouse guide vessels into?+
Nanaura Kō Range Rear Lighthouse assists vessels approaching 5 nearby ports. The closest is Tateyama at 6.8 NM to the NW. Other ports served include Wada (8.2 NM NNE), Muya (8.4 NM NW), Abuto (12.7 NM NE), Kazusaminato (18.5 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Nanaura Kō Range Rear Lighthouse still active and maintained?+
Yes, Nanaura Kō 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.
What shipping routes pass near Nanaura Kō Range Rear Lighthouse?+
Nanaura Kō Range Rear Lighthouse is located within the Japan / Korea shipping lane — a busy shipping corridor linking the major ports of Japan and South Korea. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Nanaura Kō Range Rear Lighthouse?+
You can track vessels near Nanaura Kō 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.