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Dry Tortugas (Loggerhead Key) Light

Location: Loggerhead Key / Dry Tortugas Islands near Key West, FL

About Dry Tortugas (Loggerhead Key) Light


The location of the light is Loggerhead Key / Dry Tortugas Islands. The nearest city is Key West, FL. The station was first established in 1858. The current lighthouse was first lit in 1858.

The lighthouse is a conical tower.

The tower has a flashing white light at a focal plane height of 151 ft above mean high water. The light has a nominal range of 20 nautical miles. The tower height is 150 ft. The light has a period of 20 seconds.

Open to the Public?: Grounds Only    Active?: Yes

Identification number: 3-1095 (U.S.)

The walls are 3 feet 9 inches thick at the base and 2 feet 9 inches at the top. Outside it tapered from 28 feet at the base to 13 feet at the top. The light was seriously damaged in two hurricanes, one in October 1873 and one in September 1875. The light was considered essential so the funds were appropriated to repair the light. The light is the last lighthouse seen heading from Key West into the Gulf of Mexico. The light is an active aid to navigation and was automated in 1988.

Color - lower half white, upper half black.

Emergency light of reduced intensity when main light is extinguished. RACON: K ( ).

A 'flashing' light is a light in which the total duration of light in a period is shorter than the total duration of darkness and the appearances of light (flashes) are usually of equal duration. So in the 20 second period, the light is on for less than 10 then off for more than 10.

Today's Conditions on Site

Astronomical Info.

Astronomical Dawn: 5:58 am
Sunrise: 7:18 am
Sunset: 6:09 pm
Astronomical Dusk: 7:28 pm

Local Marine Forecast.

There are no active watches, warnings or advisories 

Additional Conditions.

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