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Sand Island Lighthouse

Fl W 6s🇺🇸Northern Wisconsin, USInactive

The Sand Island Light stands 13 meters tall, with its focal plane at 18 meters. This white, octagonal tower, constructed from locally quarried brown sandstone, incorporates a two-story dwelling. The lighthouse features a white light with a simple flash characteristic. Originally intended to guide mariners on Lake Superior, its geographic range was noted at 7 nautical miles. The structure shows quarry marks on the rock ledges nearby, remnants of its construction. It was designed in a Gothic Revival style common to several other lighthouses in the region. The light is no longer operational.

Why it matters: The Sand Island Light is a contributing property to the National Register of Historic Places and is part of the Apostle Islands National Lakeshore.

Background
The Sand Island Light is a lighthouse located on the northern tip of Sand Island, one of the Apostle Islands, in Lake Superior in Bayfield County, Wisconsin, near the city of Bayfield. Currently owned by the National Park Service and part of the Apostle Islands National Lakeshore, it was added to the National Register of Historic Places in 1977, part of reference number 77000145. Listed in the Library of Congress Historic American Buildings Survey, WI-313. The Sand Island lighthouse consists of an octagonal tower and attached two-story dwelling, all built from brown sandstone cut from the promontory on which it stands. Visitors to the lighthouse today can still see marks on the rock ledges in front of the lighthouse that were made in the process of quarrying. The lighthouse was built to a standard Gothic Revival design already used at several light stations in Wisconsin and Michigan. The lighthouses previously built at McGulpin Point, Eagle Harbor, and White River, along with the St. Clair Flats Canal beacon (no longer standing), follow the same plan, while the Chambers Island lighthouse is a “mirror twin” to the Sand Island structure, with the same design reversed right to left. Unlike these others, which were made out of brick, the Sand Island lighthouse is constructed of brown sandstone, quarried from the ledge where it sits. Subsequently, additional stone excavated at Sand Island was transported to Passage Island near Isle Royale where it was used to construct an addition
Characteristic Signature
Fl W 6s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
6s
Raw Code
Fl
Focal Height
18m
Geographic Range
7NM
Heritage Status
National Register of Historic Places contributing property
Tower Height
13m
Tower Color
white
City
Northern Wisconsin
Country
🇺🇸US
Latitude
47.0031°
Longitude
-90.9377°
Flag
Type
Name
Dist.
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How do mariners identify Sand Island Lighthouse at night?+
Sand Island displays the characteristic Fl W 6s — 1 white 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.
Which ports and harbors does Sand Island Lighthouse guide vessels into?+
Sand Island Lighthouse assists vessels approaching 5 nearby ports. The closest is Bayfield at 12.8 NM to the SSE. Other ports served include LA POINTE (14.8 NM SSE), Silver Bay (21.2 NM NW), Ashland (24.1 NM S), TWO HARBORS (30.1 NM W). Mariners should consult the relevant chart for full approach and pilotage information.
Is Sand Island Lighthouse still active and maintained?+
Sand Island Lighthouse is currently listed as inactive. It may have been decommissioned, replaced by a different navigation aid, or temporarily taken out of service. Mariners should check the latest Notices to Mariners for current status.
How can I track vessels near Sand Island Lighthouse?+
You can track vessels near Sand Island 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.