João Dias Geodetic Marker

João Dias 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° 52' 12.0363" N, 07° 17' 9.5394" W (39.87001008, -7.28598317). RGN identification: 1:50,000 sheet 25A, type PILAR TRONCO-CÓNICO.

Altimetry: orthometric altitude at the top 226.73 m; at the base 224.08 m; ellipsoidal altitude at the top 281.64 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-25a-joao-dias