São Jorge Geodetic Marker

São Jorge 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: 39° 37' 56.6678" N, 08° 50' 53.1807" W (39.63240772, -8.84810575). RGN identification: 1:50,000 sheet 27A, type BOLEMBREANO S/ DEPÓSITO.

Altimetry: orthometric altitude at the top 180.98 m; at the base 165.87 m; ellipsoidal altitude at the top 235.11 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-27a-sao-jorge