Alto Geodetic Marker

Alto 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° 33' 56.3809" N, 07° 48' 31.8951" W (37.56566136, -7.80885975). RGN identification: 1:50,000 sheet 46C, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 183.8 m; at the base 181.07 m; ellipsoidal altitude at the top 238.49 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-46c-alto