
YEAR PUBLISHED: 1854
K No. 1 Entrance to Columbia River Oregon
DESCRIPTION
Detailed chart of the Entrance to Columbia River. Cape Adams, Cape Hancock or Disappointment and Sand Island are shown. Numerous depth soundings, channels, bearings, ranges, isolines, breakers, dangers and aids to navigation are shown. Detailed sailing directions, tidal notes and remarks are given.
IMPORTANT NOTE:
All of our United States Coast Survey (USCS), United States Coast & Geodetic Survey (USC&GS), and similar maps and charts have been professionally unfolded and flattened using humidity baths, semi-permeable membrane, and drying blotter techniques. Most others you typically see on eBay have not been, and worse, are quickly and crudely unfolded for the low-quality photos you see. Unfolding these maps in that way is damaging and weakens them. Please be aware.
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