Contour Interval | Types of Contour Lines

Contour Interval | Types of Contour Lines

Contour Interval | Types of Contour Lines

Contour Interval

contour interval is a vertical distance or difference in elevation between contour lines. Index contours are bold or thicker lines that appear at every fifth contour line. If the numbers associated with specific contour lines are increasing, the elevation of the terrain is also increasing.

A contour interval in the surveying is the vertical distance or the difference in the elevation between the two contour lines in a topographical map.

A contour line is a line drawn on a topographic map to indicate ground elevation or depression. A contour interval is a vertical distance or difference in elevation between contour lines. Index contours are bold or thicker lines that appear at every fifth contour line.

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