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Newburyport Harbor (Plum Island)
State: MA
Year established: 1788
Latitude: 42 deg 48
min 55 sec N
Longitude: 70 deg 49
min 11 sec W
Height above sea level: 50 feet Original construction:
two movable wooden towers, as range lights to show channels through shifting sand bars Rebuilds:
 1838: two towers replaced
1898: present single 35-foot tower (card 2a)
Status:
electrified in 1927, automated in 1951; active aid to navigation
Light characteristic:
Occulting green, 2 eclipses every 15 seconds visible for 10 nautical miles
More information:
http://lighthouse.cc/plumisland/index.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), p. 113
Holland Jr., F. Ross, America's Lighthouses: Their Illustrated History Since 1716, (Brattleboro, VT: The Stephen Greene Press, 1972), p. 80
U.S. Department of Homeland Security / United States Coast Guard, Light List, Volume 1 Atlantic Coast, St. Croix River, ME to Shrewsbury River, NJ, (Washington, DC: GPO, 2003), p. 5
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