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Topographic maps show the type of terrain in an area and are a valuable aid to property planning. They are commonly referred to as topographical contour maps.
A topographic map represents a three-dimensional landscape on a flat surface.
Contour lines represent points on the map that are the same height above or below a known reference point (normally taken to be sea level).
Topographic maps can help to locate catchment boundaries and drainage lines. They are useful for planning the locations of fences, access tracks, watering points, buildings and yards.
Land slopes can be measured from a topographic-map and provide useful data for the design of erosion control measures, dams, pipelines and irrigation schemes.
The great domain and potential website name topographic.org can be the name of a great new website for you!
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