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Marrowstone Point Lighthouse

Occ W 4s🇺🇸Washington, USOperational

Location & Light Range

About Marrowstone Point Lighthouse

Marrowstone Point Lighthouse is a maritime navigation aid located in Washington, US. It is currently operational and active, providing guidance to vessels navigating the surrounding waters. The light sits at a focal height of 8.5 meters above mean sea level.

Light characteristic: The identifying signal of this lighthouse is Occ W 4s. This means the light produces 1 flash every 4 seconds. Mariners use this distinctive pattern to positively identify the light and distinguish it from other aids to navigation in the area. The light displays a white signal, the most common color for major coastal lights.

Position: Marrowstone Point Lighthouse is positioned at 48.1018°N, 122.6878°W, near Washington in US.

Geographic context: Marrowstone Point Lighthouse is situated on the North Pacific Ocean, within the US West Coast shipping lane — a major trans-Pacific trade route serving West Coast ports of the United States. The location falls within the temperate maritime climate zone.

Nearby lighthouses in US: Other lighthouses in the region include Abagadasset Point Range, Absecon, Admiralty Head Light, Ahukini Breakwater, Alameda County (Oakland Area) Lighthouses. View all on the Lighthouses Directory.

Nearby Ports

Port Townsend

USTWD

3.5 NMWNW

Port Hadlock

USABC

4.9 NMSSW

CAPTAIN WHIDBEY INN

USCBL

7.4 NMNNW

Freeland

USFNB

8.7 NMSE

Port Ludlow

USPLU

10.9 NMS

Flash Characteristics

Characteristic Signature
Occ W 4s
Flash Type
Occ
Light Color
White
Flash Count
1 flash
Interval
4s

Physical Specifications

Focal Height
8.5m
Light Range
Not available
Status
ACTIVE
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.