Contour Interval – Calculation – Examples – Types – Scale – Formula

What is contour Interval in surveying?

On a topographic map, a contour line is a line that depicts ground elevation or depression. The vertical distance or difference in elevation between contour lines is known as a contour interval. Every sixth contour line has an index contour, which is a bolder or thicker line. The height of the land rises as the … Read more