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Segunda Angostura Lighthouse

Fl White 10s🇨🇱San Gregorio, CLOperational

Location & Light Range

About Segunda Angostura Lighthouse

Also known as: Segunda Angostura (Second Narrows)

This octagonal concrete tower stands 6 meters tall and is painted white with a red horizontal band. Its focal height reaches 20 meters above sea level, and it emits a white light with a flash every 10 seconds. The lighthouse is situated on the south side of the eastern entrance to the Second Narrows of the Strait. This location is where the strait widens into the Bajo Satelite, a sound approximately 30 kilometers in diameter, positioned between the First and Second Narrows. The site is open to visitors, but the tower itself is closed to the public.

Why it matters: This lighthouse is essential for guiding vessels safely through the Second Narrows of the Strait, particularly as they transition into or out of the wider Bajo Satelite sound. Its light helps mariners navigate the complex geography of this critical shipping lane.

Light & Optic

Characteristic Signature
Fl White 10s
Flash Type
Flashing
Light Color
White
Interval
10s
Raw Code
Fl W 10s
Focal Height
20m
Geographic Range
13.2NM

Location

City
San Gregorio
Country
🇨🇱Chile
Region
Magallanes and Chilean Antarctica Region
Sea Region
Located on the south side of the eastern entrance to the Second Narrows of the Strait, between the First and Second Narrows, where the Strait widens into the Bajo Satelite, a broad sound about 30 km in diameter.
Latitude
-52.3949°
Longitude
-68.4312°

References & Identifiers

Nearest Port
Punta Loyola(52.2 km)
Admiralty No.
G1425
NGA No.
111-2472

Tower & Structure

Tower Height
6m
Tower Shape
octagonal
Tower Color
white with a red horizontal band
Material
concrete

Structure: octagonal concrete tower, painted white with a red horizontal band

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 Segunda Angostura Lighthouse at night?+
Segunda Angostura displays the characteristic Fl White 10s. 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 Segunda Angostura Lighthouse guide vessels into?+
Segunda Angostura Lighthouse assists vessels approaching 1 nearby port. The closest is Rio Cullen at 28 NM to the SSE. Mariners should consult the relevant chart for full approach and pilotage information.
Is Segunda Angostura Lighthouse still active and maintained?+
Yes, Segunda Angostura 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 Segunda Angostura Lighthouse?+
You can track vessels near Segunda Angostura 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.