Penedo das Gralhas Geodetic Marker

Penedo das Gralhas 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° 22' 17.2164" N, 09° 09' 36.8832" W (39.37144900, -9.16024533). RGN identification: 1:50,000 sheet 26D, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 82.18 m; at the base 80.45 m; ellipsoidal altitude at the top 135.8 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-26d-penedo-das-gralhas