Castanheira Geodetic Marker

Castanheira 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° 35' 26.0006" N, 08° 21' 1.7684" W (40.59055572, -8.35049122). RGN identification: 1:50,000 sheet 16B, order 2, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 389.75 m; at the base 384.76 m; ellipsoidal altitude at the top 445.05 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-16b-castanheira