Sobreiro Geodetic Marker

Sobreiro 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: 38° 57' 32.1806" N, 09° 21' 12.9214" W (38.95893906, -9.35358928). RGN identification: 1:50,000 sheet 30C, order 4, type PILAR TRONCO-CÓNICO S/ CILINDRO.

Altimetry: orthometric altitude at the top 204.88 m; at the base 200.85 m; ellipsoidal altitude at the top 258.88 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-30c-sobreiro