Seixal Geodetic Marker

Seixal 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° 15' 34.9623" N, 09° 19' 13.1818" W (39.25971175, -9.32032828). RGN identification: 1:50,000 sheet 30A, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 47.78 m; at the base 45.28 m; ellipsoidal altitude at the top 101.52 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-30a-seixal