Valongo Geodetic Marker

Valongo Geodetic Marker is a point in the Portuguese National Geodetic Network (RGN), the reference network used for mapping, surveying and geographic measurement in Portugal.

Coordinates: 40° 08' 3.149" N, 07° 38' 51.5473" W (40.13420806, -7.64765203). RGN identification: 1:50,000 sheet 20D, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 618.01 m; at the base 615.5 m; ellipsoidal altitude at the top 674.01 m.

This record is based on official RGN coordinate data and is useful for understanding the landscape, planning map work or identifying a precise geographic reference point. Local access conditions can vary, so check the terrain before visiting.

RGN source ID: rgn-20d-valongo