São Marcos Geodetic Marker

São Marcos 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° 25' 31.7482" N, 08° 23' 54.2765" W (37.42548561, -8.39841014). RGN identification: 1:50,000 sheet 49B, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 282.22 m; at the base 279.44 m; ellipsoidal altitude at the top 336.52 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-49b-sao-marcos