Topographic Map Symbols
Shelter & Survival Skills · Navigation & Maps
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What is a Topographic Map? A map is a representation of the Earth, or part of it. The distinctive character- istic of a topographic map is that the shape of the Earth’s surface is shown by contour lines. Contours are imag- inary lines that join points of equal elevation on the surface of the land above or below a reference surface, such as mean sea level. Contours make it possible to measure the height of mountains, depths of the ocean bottom, and steep- ness of slopes. A topographic map shows m
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