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Rocher des Deux Frères Lighthouse

Fl (2) Green 6s🇩🇿DZOperational

Location & Light Range

About Rocher des Deux Frères Lighthouse

The Rocher des Deux Frères lighthouse consists of a 6m metal post, painted black and set on a square white base, with a black lantern enclosure. The light's focal plane is 26m above sea level. It projects a green signal, Fl G 6s, with a range of 14.5 nautical miles. This structure is situated on the Rocher des Deux Frères, a prominent split rock marking the entry to Ghazaouet harbor, 0.1 km from the port.

Why it matters: This navigation aid marks the entrance to Ghazaouet harbor, warning vessels of the Rocher des Deux Frères rock formation.

Light & Optic

Characteristic Signature
Fl (2) Green 6s
Flash Type
Flashing
Light Color
Green
Flash Count
2 flashes
Interval
6s
Raw Code
Fl G 6s
Focal Height
26m
Geographic Range
14.5NM

Location

Country
🇩🇿Algeria
Sea Region
Located on the Rocher des Deux Frères (Two Brothers Rock), a giant split rock at the entrance to Ghazaouet harbor, approximately 200 meters south of the north jetty light.
Latitude
35.1033°
Longitude
-1.8716°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
6m
Tower Color
black post with a white base and black lantern
Material
metal

Structure: A 6m black post mounted on a square white base, topped with a black lantern.

References & Identifiers

Nearest Port
Ghazaouet(0.1 km)
Admiralty No.
E6732
NGA No.
22704
ARLHS No.
ALG-054
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Frequently Asked Questions

How do mariners identify Rocher des Deux Frères Lighthouse at night?+
Rocher des Deux Frères displays the characteristic Fl (2) Green 6s — 2 green flashes every 6 seconds. 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 Rocher des Deux Frères Lighthouse guide vessels into?+
Rocher des Deux Frères Lighthouse assists vessels approaching 5 nearby ports. The closest is Ghazaouet at 0.3 NM to the ENE. Other ports served include SAIDIA (20.8 NM W), Ras El Ma (26 NM W), Benisaf (26.5 NM ENE), Tlemcen (31.5 NM ESE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Rocher des Deux Frères Lighthouse still active and maintained?+
Yes, Rocher des Deux Frères 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 Rocher des Deux Frères Lighthouse?+
Rocher des Deux Frères Lighthouse is located within the Mediterranean East-West corridor — a major trade route spanning the Mediterranean from Gibraltar to the Suez Canal. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Rocher des Deux Frères Lighthouse?+
You can track vessels near Rocher des Deux Frères 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.