Grelo Geodetic Marker

Grelo 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° 12' 24.7928" N, 08° 47' 3.1042" W (40.20688689, -8.78419561). RGN identification: 1:50,000 sheet 19A, type PILAR TRONCO-CÓNICO.

Altimetry: orthometric altitude at the top 65.61 m; at the base 62.87 m; ellipsoidal altitude at the top 119.51 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-19a-grelo