May 15, 2014
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By Heidi Walters and Drew Hyland
The Arcturus, made of riveted iron like the Titanic, was first named the Westdahl. It was built in 1929 in Portland, Ore., for the U.S. Coast and Geodetic Survey. It charted waters off the Pacific Coast and Alaska until 1946. (See the NOAA Photo Library, online, for historic images of the Westdahl at work in icy waters.)