Define a position of leaning points was an aim of this thesis. Those points were afterwards used for poligon surveying on the road section Zali log-Davča. At first preview on the field we came to the conclusion, that any of the known geodetic point can not be used. Some of them were distroyed but most of them were grown over by bush and other vegetation. Therefore we decided to define coordinates of new geodetic points with GPS technology. Those points were afterwards used to lean a terestrical poligon.