Sobreda Geodetic Marker

Sobreda 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° 27' 22.2137" N, 07° 48' 56.2003" W (40.45617047, -7.81561119). RGN identification: 1:50,000 sheet 17C, order 3, type PILAR S/ CONSTRUÇÃO.

Altimetry: orthometric altitude at the top 399.44 m; at the base 397.72 m; ellipsoidal altitude at the top 454.85 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-17c-sobreda