Calvo Geodetic Marker

Calvo 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: 38° 52' 16.3512" N, 08° 31' 49.8084" W (38.87120867, -8.53050233). RGN identification: 1:50,000 sheet 35A, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 111.43 m; at the base 108.91 m; ellipsoidal altitude at the top 165.41 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-35a-calvo