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EXPESEARCH is a directory of non-profit organizations and commercial companies which offer products and services to expeditions, ExpeditionQuest members, and the general public. Special Discount Codes are available only to members of Expedition Quest. Organizations which offer discounts to EQ members are listed at the top of their category. For more information on registering your organization or company please go here

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ExpeSearch > Navigation > Marine Navigation
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 Bowditch Online
Navigation course containing 38 chapters covering charts, radar, astronomy, and regulations. Glossary. Archives for the navigation mailing list.

 Celestial Navigation Data
Astronomical information necessary to plot navigational lines of position from observations of the altitudes of celestial bodies from the U.S. Naval Observatory.

 Digital Navigation Publications
Downloadable publications from the National Imagery and Mapping Agency including The American Practical Navigator and Radio Navigational Aids.

 Navigate!
A free online course in basic coastal navigation.

 Navigation Information Connection
Links and photos associated with the U.S. Inland Waterway System. Includes real time location and queue lists of towboats and barges operating on U.S. inland waterways.

 Sailing Issues: Navigation Course
Contains nine chapters covering piloting, plotting, navigation aids, and tides. Related equations and tables.

 The Complete On-Board Celestial Navigator
About a reference book for navigation at sea. Includes table of contents and purchasing information.