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Whitlock'S Mill Lighthouse

Iso G 6s🇺🇸Eastern Maine, USOperational

Location & Light Range

About Whitlock'S Mill Lighthouse

Whitlock's Mill is a square white tower situated in Eastern Maine. Its focal height reaches 10 meters above the water. The light emits a green signal, cycling through an isophase pattern every 6 seconds. This light has a geographic range extending 5 nautical miles. The structure is located on Deer Island.

Light & Optic

Characteristic Signature
Iso G 6s
Flash Type
Isophase
Light Color
Green
Flash Count
1 flash
Interval
6s
Raw Code
Iso.G. period 6s
Focal Height
10m
Geographic Range
5NM

Location

City
Eastern Maine
Country
🇺🇸US
Latitude
45.1628°
Longitude
-67.2271°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Shape
square
Tower Color
white

Structure: DEER ISLAND:

References & Identifiers

Admiralty No.
H4138
NGA No.
11260
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Frequently Asked Questions

How do mariners identify Whitlock'S Mill Lighthouse at night?+
Whitlock'S Mill displays the characteristic Iso G 6s — 1 green flash 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 Whitlock'S Mill Lighthouse guide vessels into?+
Whitlock'S Mill Lighthouse assists vessels approaching 5 nearby ports. The closest is Bayside (St Roberts) at 3.6 NM to the E. Other ports served include Bayside, Charlotte (5 NM ESE), Deer Island (16.1 NM SE), Eastport (18.8 NM SSE), Blacks Harbour (19.3 NM ESE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Whitlock'S Mill Lighthouse still active and maintained?+
Yes, Whitlock'S Mill 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 Whitlock'S Mill Lighthouse?+
You can track vessels near Whitlock'S Mill 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.