This image is in the public domain because it contains materials that originally came from the U.S. National Oceanic and Atmospheric Administration, taken or made as part of an employee's official duties. العربية ∙ čeština ∙ Deutsch ∙ Zazaki ∙ English ∙ español ∙ eesti ∙ suomi ∙ français ∙ hrvatski ∙ magyar ∙ italiano ∙ 日本語 ∙ 한국어 ∙ македонски ∙ മലയാളം ∙ Plattdüütsch ∙ Nederlands ∙ polski ∙ português ∙ română ∙ русский ∙ sicilianu ∙ slovenščina ∙ Türkçe ∙ Tiếng Việt ∙ 简体中文 ∙ 繁體中文 ∙ +/−

The original description is/was here. All names refer to the English Wikipedia.

01:58, 28 April 2007 1,365×637 (139 KB) Rmo13 (words added, cropped, colors releveled, p.367 of [http://chartmaker.ncd.noaa.gov/nsd/CP3/CP3-40ed-Ch15_3.pdf Chapter 15] Baltimore to Head of Chesapeake Bay, ''Coast Pilot 3'', 40th Edition, 2007, Office of Coastal Survey, NOAA. {{PD-USGov-DOC-NOAA}})