Silveira Geodetic Marker

Silveira 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° 34' 42.8817" N, 07° 47' 3.4184" W (39.57857825, -7.78428289). RGN identification: 1:50,000 sheet 28A, type PILAR TRONCO-CÓNICO.

Altimetry: orthometric altitude at the top 241.66 m; at the base 239.05 m; ellipsoidal altitude at the top 296.82 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-28a-silveira