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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.
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The most common map symbols are shown and defined in the following images: Transportation Features: Roads and Trails. Railways and Airports. Other Transportation Features (tunnels, bridges, embankments, etc.) Hydrographic Features: Man Made Hydrographic Features (docks, dams, canals, etc.)
Introduction: Interpreting the colored lines, areas, and other symbols is the first step in using topographic maps. Features are shown as points, lines, or areas, depending on their size and extent. For example, individual houses may be shown as small black squares.
Jan 26, 2024 · Topographic map features including many different lines, symbols, and other details represent specific things within the environment being mapped out. Other topographic symbols like elevation changes, waterways, towns and cities, and more are represented by markers usually found on the map legend.
use a topographic map, explanations of technical terminology and examples of symbols used to represent topographic features on topographic maps. Why? Topographic maps represent the Earth’s features accurately and to scale on a two-dimensional surface. Topographic maps are an excellent planning tool and guide and, at
See the latest legend with symbols and colors that are used on USGS topographic maps. The legend and the topo maps are free to use on a computer or a phone.
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Interpreting the colored lines, areas, and other symbols is the first step in using topographic maps. Features are shown as points, lines, or areas, depending on their size and extent. For example, individual houses may be shown as small black squares.
