Castelo do Sobral Geodetic Marker

Castelo do Sobral 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° 58' 7.7855" N, 08° 22' 27.9357" W (39.96882931, -8.37442658). RGN identification: 1:50,000 sheet 23B, order 3, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 353.58 m; at the base 351.54 m; ellipsoidal altitude at the top 408.95 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-23b-castelo-do-sobral