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Cape Ann (Thacher Island)
State: MA
Year established: 1771
Latitude: 42 deg 38
min 21 sec N
Longitude: 70 deg 34
min 29 sec W
Height above sea level: 166 (both towers) feet Original construction:
2 45-foot stone towers Rebuilds:
 1861: 2 124-foot granite towers
Status:
North tower decommissioned in 1932; relighted as private aid in 1989; South tower automated 1980, active aid to navigation
Light characteristic:
North tower, fixed yellow; South tower flashing red every 5 seconds, visible for 17 nautical miles; fog signal, 2 blasts every 60 seconds
More information:
http://lighthouse.cc/thacher/history.html
http://www.uscg.mil/hq/g-cp/history/WEBLIGHTHOUSES/LHMA.html
Holland Jr., F. Ross, Great American Lighthouses, National Historic Trust Guide, (Washington, DC: The Preservation Press, 1989), pp. 101-102
Holland Jr., F. Ross, America's Lighthouses: Their Illustrated History Since 1716, (Brattleboro, VT: The Stephen Greene Press, 1972), p. 79
Office of the Light House Board, List of Lights and Fog Signals on the Atlantic and Gulf Coasts of the United States, (Washington, DC: GPO, 1895), pp. 28-29
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