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United States hydrographic surveys in Canadian western Arctic, 1955–57

Published online by Cambridge University Press:  27 October 2009

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Extract

As a result of these operations 1000 miles of a deep-water North West Passage were charted. In addition, five hundred square miles of detailed hydrographic survey were made in the most dangerous areas. About 285 miles of coastline were covered by triangulation and 28 radar reflector towers were built as navigational aids. The results of the surveys were published in a series of 33 charts and in greatly improved sailing directions.

Type
Field Work
Information
Polar Record , Volume 9 , Issue 62 , May 1959 , pp. 450 - 452
Copyright
Copyright © Cambridge University Press 1959

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