No. 3 Sketch A Shewing the progress of the Survey in Section 1 from 1844 to
1873. Progress of the Survey of Lake Champlain 1873. Sub-sketch Showing the
position of Davis' Shoal Discovered by the U.S. Coast Survey in 1846.
Annual Report 1872.
Image ID: cgs06507, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
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