Roca Geodetic Marker

Roca 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° 46' 54.8128" N, 09° 29' 50.3091" W (38.78189244, -9.49730808). RGN identification: 1:50,000 sheet 34A, type FAROL.

Altimetry: orthometric altitude at the top 164.85 m; at the base 140.85 m; ellipsoidal altitude at the top 218.51 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-34a-roca