Eira Velha Geodetic Marker

Eira Velha 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° 20' 0.7722" N, 07° 27' 24.3745" W (37.33354783, -7.45677069). RGN identification: 1:50,000 sheet 50B, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 129.31 m; at the base 126.81 m; ellipsoidal altitude at the top 182.78 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-50b-eira-velha