Eira Alta Geodetic Marker

Eira Alta 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° 43' 53.4093" N, 07° 37' 0.5029" W (37.73150258, -7.61680636). RGN identification: 1:50,000 sheet 46B, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 170.17 m; at the base 167.4 m; ellipsoidal altitude at the top 224.91 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-46b-eira-alta