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: 37° 57' 52.5454" N, 08° 08' 24.2583" W (37.96459594, -8.14007175). RGN identification: 1:50,000 sheet 42D, type PILAR PRISMÁTICO S/ BASE PRISMÁTICA.

Altimetry: orthometric altitude at the top 158.39 m; at the base 155.57 m; ellipsoidal altitude at the top 212.89 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-42d-valongo