Pedra do Altar Geodetic Marker

Pedra do Altar 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° 42' 32.9101" N, 07° 49' 9.3661" W (39.70914169, -7.81926836). RGN identification: 1:50,000 sheet 24C, type PILAR TRONCO-CÓNICO.

Altimetry: orthometric altitude at the top 331.49 m; at the base 328.82 m; ellipsoidal altitude at the top 386.84 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-24c-pedra-do-altar