Nautical Charts

Nautical charts are graphic representations of a sea area and neighbouring coastal regions. Charts come in various scales and consequently the information contained on a chart varies. The following information is normally included; depths of water and heights of land , navigational hazards, features of the seabed, locations of natural and man-made aids to navigation, information on tides and currents, local details of the earth's magnetic field, and details of the coastline including harbours.

Source: http://www.articlesbase.com/outdoor-sports-articles/nautical-charts-5013597.html

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