Castelhanas Geodetic Marker

Castelhanas 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° 59' 0.579" N, 08° 43' 24.5861" W (39.98349417, -8.72349614). RGN identification: 1:50,000 sheet 23A, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 87.31 m; at the base 85.36 m; ellipsoidal altitude at the top 141.36 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-23a-castelhanas