This survey also determines The situation in the house boundaries and the existing structures in relation to them. Near Spacing: When contour lines are closely packed, it signifies a steep slope. The speedy change in elevation above a brief horizontal distance produces a pronounced incline. Deccan Survey Alternatives known for https://contour-survey-in-dhaka27801.webbuzzfeed.com/33013482/not-known-facts-about-contour-survey-in-bangladesh