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There are three main differences between contour interval and horizontal equivalent as follows:
|S.No||Contour Interval||Horizontal Equivalent|
|1||It is based on vertical levels||Represents horizontal distance|
|2||No measurement or scaling is required since the contour levels are indicated on the contour lines||The distance must be measured on the map and converted to actual distance by multiplying with the scale of the map|
|3||In a given map the contour interval is a constant||The horizontal equivalent varies with slope. Closer distance indicates steep slope and wider distance gentle slope|
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