São Martinho Geodetic Marker

São Martinho 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° 23' 12.9655" N, 08° 55' 36.0315" W (39.38693486, -8.92667542). RGN identification: 1:50,000 sheet 26D, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 306.82 m; at the base 304.32 m; ellipsoidal altitude at the top 360.92 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-26d-sao-martinho