Duluth South Breakwater Outer Light

The Duluth South Breakwater Outer Light is a lighthouse on the south breakwater of the Duluth Ship Canal in Duluth, Minnesota, United States. It forms a range with the Duluth South Breakwater Inner Light to guide ships into the canal from Lake Superior.

Duluth South Breakwater Outer Light
The Duluth South Breakwater Outer Light from the northwest
LocationLake end of south breakwater of the Duluth Ship Canal, Duluth, Minnesota
Coordinates46°46′48.3″N 92°5′16″W
Tower
Constructed1874
FoundationConcrete pier
ConstructionBrick
Automated1976
Height10.5 m (34 ft) 
ShapeHouse with square tower
MarkingsWhite with red roof
HeritageNational Register of Historic Places listed place 
Fog signalHorn
Light
First lit1901
Focal height44 ft (13 m)
LensFourth order Fresnel lens
Range13 nautical miles (24 km; 15 mi)
CharacteristicFixed Green
Duluth Harbor South Breakwater Outer Light
U.S. National Register of Historic Places
AreaLess than one acre
ArchitectOffice of the Superintendent of Lighthouses
MPSLight Stations of the United States MPS
NRHP reference No.16000341
Added to NRHPJune 7, 2016
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