| Contours showing a conical mountain are almost circular with peak of the mountain as their centre. The contours are drawn almost at regular distances, the value of which increases towards the centre, which is the peak and represented with a dot. | Contours showing a depression are almost circular like a conical hill with a depression as their centre. The contour lines are drawn at regular distances, and their value keeps on increasing towards the centre, where the lines suddenly show decrease in height at the centre, which is the depression. |