Portela Geodetic Marker

Portela 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° 15' 5.0251" N, 09° 17' 38.8886" W (39.25139586, -9.29413572). RGN identification: 1:50,000 sheet 30A, order 2, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 90.84 m; at the base 88.32 m; ellipsoidal altitude at the top 144.62 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-30a-portela