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Marrowstone Point Lighthouse

Occ W 4s🇺🇸Washington, USOperational

Location & Light Range

About Marrowstone Point Lighthouse

This metal framework tower stands 8.5 meters tall and was constructed in 1888. Its white structure supports a light with a focal height of 8.5 meters. The lighthouse emits a white flash, visible for 7 nautical miles. It overlooks Admiralty Inlet from the northern tip of Marrowstone Island. Access to the site is restricted, and it is not open to the public.

Why it matters: The lighthouse serves as an active navigational aid overlooking Admiralty Inlet.

Background
The Marrowstone Point Light is an active navigational aid overlooking Admiralty Inlet at the northern tip of Marrowstone Island, Jefferson County, Washington, in the United States. It lies adjacent to but is not part of Fort Flagler State Park; it may be viewed from the park's beach but is not open to the public.

Light & Optic

Characteristic Signature
Occ W 4s
Flash Type
Occ
Light Color
White
Flash Count
1 flash
Interval
4s
Raw Code
Fl
Focal Height
8.5m
Geographic Range
7NM

Construction & History

Year Built
1888

References & Identifiers

Admiralty No.
N4466
NGA No.
16500
Wikipedia
Read on Wikipedia →
Wikidata
Q6773039 →
OpenStreetMap
View on OSM →

Tower & Structure

Tower Height
8.5m
Tower Color
white
Material
metal

Structure: Red metal framework tower; 26

Location

City
Washington
Country
🇺🇸US
Latitude
48.1018°
Longitude
-122.6878°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Marrowstone Point Lighthouse at night?+
Marrowstone Point displays the characteristic Occ W 4s — 1 white flash every 4 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.
Which ports and harbors does Marrowstone Point Lighthouse guide vessels into?+
Marrowstone Point Lighthouse assists vessels approaching 5 nearby ports. The closest is Port Townsend at 3.5 NM to the WNW. Other ports served include Port Hadlock (4.9 NM SSW), CAPTAIN WHIDBEY INN (7.4 NM NNW), Freeland (8.7 NM SE), Port Ludlow (10.9 NM S). Mariners should consult the relevant chart for full approach and pilotage information.
Is Marrowstone Point Lighthouse still active and maintained?+
Yes, Marrowstone Point 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 Marrowstone Point Lighthouse?+
Marrowstone Point Lighthouse is located within the US West Coast shipping lane — a major trans-Pacific trade route serving West Coast ports of the United States. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Marrowstone Point Lighthouse?+
You can track vessels near Marrowstone Point 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.