Many don’t know the real importance of contour maps and simultaneously, c ontour surveys in Tuncurry . Both are very helpful since they provide important information about the topography. A few of the uses of contours are as follows: · The nature of the land and its gradient can be approximated · Earthwork can be approximated for civil engineering plans like railway, road works, canals, dams, etc. · It is likely to identify an appropriate site for any project from the contour map of the area. · The Inter-visibility of points can be determined using contour maps. This is most helpful to locate communication towers. What is contouring in the survey? Contouring in the survey is finding out the elevation of different points on the land and fixing these points of the same horizontal positions in the contour map or chart. To use vertical control levelling work is done and simultaneously to use horizontal control chain survey or plane table survey or compass surve...