A Topographical Survey is an accurate depiction of an object, a feature or site (e.g. property, area of land or a defined boundary) which is scaled and detailed according to the spatial considerations (coordinates, bearings, distances etc.) and is the summary of the on-site data capture processes.
The topographical survey determines the location of natural and man-made features (such as the buildings, improvements, fences, land contours, trees, streams, etc.) of the land along with its elevations. A topo map is used to depict terrain relief showing the ground elevation, using contour lines or spot heights.