Get the MarineRadar appSatellite AISSatellite live trackingTrack any shipLive alerts112,000+ ships trackedDownload free

Ulkokrunni Range Rear Lighthouse

Fl White 8s🇫🇮Ii, FIOperational

Location & Light Range

About Ulkokrunni Range Rear Lighthouse

The Ulkokrunni Range Rear is a square pyramidal skeletal tower built in 1936 on the northwestern corner of Ulkokrunni island. Standing 30 meters tall, its focal height is 26.5 meters. The tower originally featured a white structure and emitted a white light, flashing once every 8 seconds. This navigational aid was deactivated in 1982, with its light being replaced by a mast light. The light apparatus was later relocated to a historic daybeacon between 1988 and 1990. Located about 20 kilometers from the mainland and 40 kilometers from Oulu, the island is a protected natural area where landings are prohibited without authorization.

Why it matters: The light's relocation reflects the evolving demands of maritime navigation and the adaptation of range requirements.

Light & Optic

Characteristic Signature
Fl White 8s
Flash Type
Flashing
Light Color
White
Interval
8s
Raw Code
Fl W 8s
Focal Height
26.5m
Geographic Range
14.6NM

Construction & History

Year Built
1936

Significant events: Deactivated 1982, light replaced by mast light, light moved to historic daybeacon around 1988-1990

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
30m
Tower Shape
square
Tower Color
white

Structure: square pyramidal skeletal tower with lantern and gallery, originally painted white

Location

City
Ii
Country
🇫🇮Finland
Region
North Ostrobothnia
Sea Region
Northwestern corner of Ulkokrunni island in the Krunni archipelago, about 20 km west of the mainland and 40 km northwest of Oulu. The island is a natural preservation area; landing is prohibited unless authorized by the Maakrunni Society. Accessible only by boat.
Latitude
65.3872°
Longitude
24.8530°

References & Identifiers

Nearest Port
Haukipudas(15.0 km)
Admiralty No.
C4101.1
NGA No.
18780
Live tracking · 50,000+ mariners

Find Ulkokrunni Range Rear Lighthouse on the live nautical map

Plan voyages near Finland, see nearby vessels in real time, and explore 14,900+ navigation aids in the app.

Nautical mapNearby vesselsVoyage planning
Get the App

Frequently Asked Questions

How do mariners identify Ulkokrunni Range Rear Lighthouse at night?+
Ulkokrunni Range Rear displays the characteristic Fl White 8s. 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 Ulkokrunni Range Rear Lighthouse guide vessels into?+
Ulkokrunni Range Rear Lighthouse assists vessels approaching 5 nearby ports. The closest is VATUNGINNOKKA at 11.9 NM to the NNE. Other ports served include Halosenlahti (14.9 NM SE), MAKSNIEMI (15.3 NM NNW), SIMONIEMI (15.7 NM N), Haukipudas (17 NM SE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ulkokrunni Range Rear Lighthouse still active and maintained?+
Yes, Ulkokrunni 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 Ulkokrunni Range Rear Lighthouse?+
Ulkokrunni Range Rear Lighthouse is located within the Baltic Sea trade route — a vital shipping corridor for trade between Scandinavian, German, Polish, and Baltic state ports. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Ulkokrunni Range Rear Lighthouse?+
You can track vessels near Ulkokrunni 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.