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° 17' 46.6449" N, 07° 23' 20.3313" W (40.29629025, -7.38898092). RGN identification: 1:50,000 sheet 20B, order 4, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 501.69 m; at the base 498.69 m; ellipsoidal altitude at the top 557.53 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-20b-castanheira