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Topographic map
medium to large scale map that shows a precise map of the terrain / From Wikipedia, the free encyclopedia
A topographic map is a kind of map which uses contour lines or other ways to show elevation and topography. These maps are often very detailed, with a scale.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/7/79/Topographic_map_example.png/320px-Topographic_map_example.png)
Topographical maps may be used for many purposes. They show relief features, rivers, land use, vegetation, settlements, roads, railway lines and administrative units and boundaries. These maps are revised periodically to update them. Town guide maps are based on them.