Hello all..myself Caitlin Dennis and I am from United Kingdom. Here I will tell you about topographic survey in brief. With the help of this survey we collect the data about the natural or man made features. This is the main part of civil Engineering project. Actually this is the first step we have to see when we start the construction. At Datum Site Services, they offer best topographic survey services to the customers. For that you can contact them at any time.