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The USGS Topographic Maps use symbols or colors to represent features, and this Topographic Map Key explains what they mean. Contour lines are distinctive to the topographic maps but there are other features shown on the maps including buildings, water and vegetation. In fact, there are nearly 200 features represented by unique symbols and ...
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In a similar way, changes are made to the symbols shown on NTS maps. Newer editions of 1/50 000 and 1/250 000 maps use symbols which look different from older NTS maps. Download a two-page topographic map legend (PDF). The most common map symbols are shown and defined in the following images: Transportation Features: Roads and Trails
Topographic Map Legend and Symbols. The topographic maps on TopoZone were created by the United States Geological Survey (USGS) and have evolved for more than a century. Over time the maps became more detailed and new symbols were added for the different terrain, natural features, land boundaries, and man-made structures depicted by the surveyors.
topographic map shows more than contours. The map includes symbols that represent such fea-tures as streets, buildings, streams, and vegetation. These symbols are con-stantly refi ned to better relate to the features they represent, improve the appearance or readability of the map, or reduce production cost.
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Topographic Map Symbols. 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.
f Geological Survey. Smaller‐scale topographic maps are b. coming very popular. Maps in the 1:100,000 series are metric—el‐ evations and contours are in mete. s, rather than feet. The 1:100,000‐scale (1 centimeter equals 1 kilometer) maps cover 30 minutes of latitude by 60 minute. (1°) of longitude. These maps show less detail than do ...
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How do you interpret a topographic map?
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The Historical Topographic Map Collection (HTMC) is the set of scanned images of USGS topographic quadrangle maps originally published as paper documents in the period 1884-2006. Visit Historical Topographic Maps - Preserving the Past for more information. 2. US Topo is the current USGS topographic map series for the Nation.
