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Caldera Alta (Puerto San Julián Fifth Range Rear) Lighthouse

Fl Red 3s🇦🇷AROperational

Location & Light Range

About Caldera Alta (Puerto San Julián Fifth Range Rear) Lighthouse

Caldera Alta, also identified as Puerto San Julián Fifth Range Rear, is a black, square pyramidal skeletal tower standing 25 meters tall. Its focal height reaches 33 meters, emitting a red flash every 3 seconds. This structure is located on a hillside approximately 7 kilometers northeast of Puerto San Julián, within the Santa Cruz region of Argentina. It guides vessels departing Puerto San Julián, offering a geographic range of 15.9 nautical miles. The tower's design is a square pyramidal skeletal form, and it is topped with a yellow daymark.

Why it matters: This range light is indispensable for the safe navigation of vessels departing Puerto San Julián, providing a critical alignment for ships as they leave the harbor.

Light & Optic

Characteristic Signature
Fl Red 3s
Flash Type
Flashing
Light Color
Red
Interval
3s
Raw Code
Fl R 3s
Focal Height
33m
Geographic Range
15.9NM

Location

Country
🇦🇷Argentina
Region
Santa Cruz
Sea Region
Bahía San Julián, guiding vessels departing Puerto San Julián, located on a hillside about 7 km northeast of Puerto San Julián.
Latitude
-49.2675°
Longitude
-67.6592°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
25m
Tower Shape
square
Tower Color
black

Structure: square pyramidal skeletal tower

References & Identifiers

Nearest Port
San Julian(3.0 km)
Admiralty No.
G1184.1
NGA No.
20004
ARLHS No.
ARG-060
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Frequently Asked Questions

How do mariners identify Caldera Alta (Puerto San Julián Fifth Range Rear) Lighthouse at night?+
Caldera Alta (Puerto San Julián Fifth Range Rear) displays the characteristic Fl Red 3s. 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Caldera Alta (Puerto San Julián Fifth Range Rear) Lighthouse guide vessels into?+
Caldera Alta (Puerto San Julián Fifth Range Rear) Lighthouse assists vessels approaching 1 nearby port. The closest is San Julian at 3.1 NM to the SW. Mariners should consult the relevant chart for full approach and pilotage information.
Is Caldera Alta (Puerto San Julián Fifth Range Rear) Lighthouse still active and maintained?+
Yes, Caldera Alta (Puerto San Julián Fifth 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 Caldera Alta (Puerto San Julián Fifth Range Rear) Lighthouse?+
You can track vessels near Caldera Alta (Puerto San Julián Fifth 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.