Check current terrain location

Hi!

I'm currently having a trouble in my project since I have a terrain size of 250x250 width and length. I need to calculate the space that I need to use in the terrain. However it is very difficult for me to make the correct calculations in which I have to place the objects since I don't know what coordinates of the map it is currently. Is there anyway that I can know the position of a certain part of a terrain?