Eira Geodetic Marker

Eira 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° 37' 20.8991" N, 07° 54' 21.145" W (39.62247197, -7.90587361). RGN identification: 1:50,000 sheet 28A, type PILAR TRONCO-CÓNICO.

Altimetry: orthometric altitude at the top 384.53 m; at the base 381.85 m; ellipsoidal altitude at the top 439.85 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-28a-eira