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Katuyama Uki Shima Lighthouse

🇯🇵Kyonan, JPOperational

Location & Light Range

About Katuyama Uki Shima Lighthouse

Katuyama Uki Shima lighthouse was a round, cylindrical concrete tower standing 14 meters tall, located on Uki Shima island at the mouth of Tōkyō Bay. It was situated 1.3 kilometers offshore from Katuyama and formerly marked the highest point of the island. The lighthouse was operational until 2010 and is now believed to have been demolished, as it is no longer visible in satellite imagery. Its nearest port is Maguchi, 7.1 kilometers away. The structure featured a gallery.

Why it matters: This lighthouse served as a navigational aid for vessels entering and exiting the busy Tōkyō Bay.

Tower & Structure

Tower Height
14m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round cylindrical concrete tower with gallery

Location

City
Kyonan
Country
🇯🇵Japan
Region
Chiba Prefecture
Sea Region
Uki Shima island in the mouth of Tōkyō Bay, 1.3 km off the harbor of Katuyama, formerly on the highest point of the island
Latitude
35.1092°
Longitude
139.8154°

Nearby Vessels

Flag
Type
Name
Dist.

Construction & History

Significant events: Inactive since 2010, probably demolished

References & Identifiers

Nearest Port
Maguchi(7.1 km)
ARLHS No.
JPN-247
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Frequently Asked Questions

Which ports and harbors does Katuyama Uki Shima Lighthouse guide vessels into?+
Katuyama Uki Shima Lighthouse assists vessels approaching 5 nearby ports. The closest is Tateyama at 6.5 NM to the SSE. Other ports served include Muya (6.6 NM S), Kazusaminato (7 NM NNE), Maguchi (7.1 NM WNW), Kurihama (8.3 NM NW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Katuyama Uki Shima Lighthouse still active and maintained?+
Yes, Katuyama Uki Shima 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 Katuyama Uki Shima Lighthouse?+
Katuyama Uki Shima 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 Katuyama Uki Shima Lighthouse?+
You can track vessels near Katuyama Uki Shima 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.