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Locate on NOAA nautical chart
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Fort Gratiot
State: MI
Year established: 1825
Latitude: 43 deg 0
min 23 sec N
Longitude: 82 deg 25
min 21 sec W
Height above sea level: 82 feet Original construction:
32-foot structure, 18-feet in diameter at the bottom, and 9-feet in diameter at the top Rebuilds:
 1829: 65-foot white painted brick tower with red trim replaced original destroyed by storm.
1861: white conical brick tower extended to current 86 feet
Status:
automated in 1933; active aid to navigation; Coast Guard housing
Light characteristic:
flashing green every 6 seconds, visible for 18 nautical miles
More information:
http://www.terrypepper.com/lights/huron/fortgratiot/fortgratiot.htm
http://www.phmuseum.org/lighthouse/lighthouse.htm
http://lighthouse.boatnerd.com/gallery/Huron/fortgratiot.htm
U.S. Department of the Interior National Park Service Cultural Resources with Candace Clifford as Project Manager. Inventory of Historic Light Stations, (Washington, DC: Government Printing Office, 1994), p. 172
Roberts, Bruce and Jones, Ray, Great Lakes Lighthouses Ontario, Erie, Huron, Michigan, and Superior, (Old Saybrook, CT: The Globe Pequot Press, 1994) p. 58
Berger, Todd R., Lighthouses of the Great Lakes, (Stillwater, MN: Voyageur Press, 2002), p. 132
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. 102
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