Sina Geodetic Marker

Sina 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: 38° 50' 34.8693" N, 08° 40' 51.3034" W (38.84301925, -8.68091761). RGN identification: 1:50,000 sheet 35A, order 4, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 66.15 m; at the base 63.65 m; ellipsoidal altitude at the top 119.82 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-35a-sina