Barreiro Geodetic Marker

Barreiro 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: 40° 36' 52.6737" N, 06° 59' 39.9304" W (40.61463158, -6.99442511). RGN identification: 1:50,000 sheet 18B, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 810.53 m; at the base 808.01 m; ellipsoidal altitude at the top 866.44 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-18b-barreiro