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Florida Lighthouses

American Shoal
Florida Keys

American Shoal

Florida Keys
Constructed 1879 – 1880. First Lighted: July 15, 1880.

At a Glance

Region
Florida Keys
Type
Historic Lighthouse
Latitude
24.52512
Longitude
-81.51942

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American Shoal

Photo: Eric S Martin

Active: Yes

Characteristics: Three-group flashing white every 15-seconds with two red sectors.

Height: 124 feet

DayMark: Brown octagonal pyramidal skeletal tower enclosing white staricase and brown octagonal dwelling; screwpile foundation.

History: Constructed 1879 - 1880. First Lighted: July 15, 1880.

Lens: Original: 1st order revolving Fresnel lens (removed in 1980). Present: Vega VRB-25 revolving beacon; RACON. Focal Plane: 109 feet.

Construction: Builders: Phoenix Iron Co. Iron screwpile constructed of wrought iron.

Coordinates:
     24 31 30 N
     81 31 12 W

Operated by: Untied States Coast Guard

Visit Status: Closed to public

Facilities: None, no handicap access

Visitor Info: From Sugarloaf Key the lighthouse is approachable by boat and can be seen from shore. The Florida Keys Reef Lights Foundation has been formed to promote the establishment of a lighthouse museum with eventual lighthouse tours and access.

Contact:
Florida Keys Reef Lights Foundation, Inc.
1067 Drift Creek Cove
Orlando, FL  32828

Email: Info@ReefLights.org
Website: www.ReefLights.org

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Overview

American Shoal Lighthouse is a 124-foot iron skeletal tower anchored to the reef southwest of the Lower Keys. A keeper’s dwelling once occupied the platform within its framework. The tower’s red daymark makes it distinctive among Florida’s surviving offshore reef lights.

History

For years, the Lighthouse Board sought a light between Sand Key and Sombrero Key, where strong currents pushed vessels toward the reefs. Congress eventually approved the project, and a prefabricated iron tower was assembled on screwpiles driven into the shoal. The light was first shown on July 15, 1880. Keepers lived above the sea and maintained the lens through hurricanes and difficult supply runs. The station was electrified in 1938 and automated in 1963. Its navigational light was discontinued in 2015, leaving the historic tower without an optic.

Visiting & Access

A very distant land view may be possible from the Sugarloaf Key area on a clear day. A boat or plane is needed for a useful close view. The tower is closed, and visitors should not attempt to climb or enter the structure.

Current Status

The lighthouse is privately owned and no longer operates as an official aid to navigation. It remains standing in open water, with no public tower access. Any trip near the reef should be made with an experienced local operator and suitable marine conditions.