Avidreira Geodetic Marker

Avidreira 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° 22' 51.3244" N, 07° 32' 57.1498" W (39.38092344, -7.54920828). RGN identification: 1:50,000 sheet 28D, order 2, type PILAR TRONCO-CÓNICO.

Altimetry: orthometric altitude at the top 429.35 m; at the base 426.65 m; ellipsoidal altitude at the top 484.47 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-28d-avidreira