Answers

2016-02-25T13:52:35+05:30
In modern mapping, a topographic map is a type of map characterized by large-scale detail and quantitative representation of relief, usually now using contour lines, but historically using a variety of methods. Traditional definitions require a topographic map to show both natural and man-made features. A topographic map is typically published as a map series, made up of two or more map sheets that combine to form the whole map. A contour line is a line connecting places of equal elevation.
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2016-02-25T18:00:52+05:30
I think it represents 100 square km of area
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