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Outer Island
State: WI
Year established: 1874
Latitude: 47 deg 4
min 36 sec N
Longitude: 90 deg 25
min 0 sec W
Height above sea level: 130 feet Original construction:
80-foot Italianate architectural style conical brick tower Rebuilds:
 1875: original fog signal building was replaced by a structure at the top of the cliff
1878: a third fog signal building, virtually identical to the second, was built at clifftop, adjacent to its twin
1900: the two fog signal buildings were renovated and combined into a single structure, assuming the current form
Status:
electrified in the late 1930s; automated in 1961; active aid to navigation
Light characteristic:
flashing white every 10 seconds, visible for 15 nautical miles
More information:
http://www.nps.gov/apis/outer.htm
Roberts, Bruce and Jones, Ray, Great Lakes Lighthouses Ontario, Erie, Huron, Michigan, and Superior, (Old Saybrook, CT: The Globe Pequot Press, 1994) p. 108
Berger, Todd R., Lighthouses of the Great Lakes, (Stillwater, MN: Voyageur Press, 2002), p. 128
U.S. Department of Homeland Security / United States Coast Guard, Light List, Volume VII, Great Lakes and the St. Lawrence River above the St. Regis River, (Washington, DC: GPO, 2004), p. 150
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