Fonte Dom João Geodetic Marker

Fonte Dom João 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° 37' 23.4636" N, 08° 20' 31.0795" W (39.62318433, -8.34196653). RGN identification: 1:50,000 sheet 27B, type PILAR CILINDRICO S/ BASE CILINDRICA.

Altimetry: orthometric altitude at the top 259.79 m; at the base 254.67 m; ellipsoidal altitude at the top 314.75 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-27b-fonte-dom-joao