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Lines connecting points of equal elevation are drawn on a topographic map to quantify elevation at any point on the map.
When the contour lines are close together, it means that the topography is very steep, when the lines are further apart, it means that the terrain slopes more smoothly.
A topographic map, for example, reveals the relief of an area by means of contour lines that represent elevation values; Each of these lines passes through points of the same elevation.
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