Consult information from the National Geodesic Network (RGN)

It allows the consultation of information from the National Geodesic Network which is composed of more than 8,000 geodesic vertices in the territory of mainland Portugal. Of these more than 1,000 have been reobserved with space techniques, which resulted in coordinates in the PT-TM06/ETRS89 system. DGT freely provides the coordinates of all geodetic vertices as well as parameters for the transformation of coordinates from local reference systems to the PT_TM06/ETRS89 system.