Grãa Geodetic Marker

Grãa 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: 38° 30' 15.6253" N, 07° 39' 18.3979" W (38.50434036, -7.65511053). RGN identification: 1:50,000 sheet 40B, order 2, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 294.75 m; at the base 291.76 m; ellipsoidal altitude at the top 349.82 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-40b-graa