Contouring Definitions and Terms (Surveying)

contour of a hill

Definition of Contour:
The line of intersection of a level surface with the ground surface is known as contour line or contour.Contour is line passing through points of similar RL(Reduced level).

Define Contour Interval?
Contour interval is vertical distance between any two consecutive contours is known interval.

What is horizontal equivalent?
Horizontal distance between any two consecutive contours is known as horizontal equivalent.Contour interval is constant but horizontal equivalent is not constant.

Draw a typical contour lines of a hill?
contour of a hill

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