Águas Negras Geodetic Marker

Águas Negras 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° 19' 2.1411" N, 08° 13' 0.8858" W (39.31726142, -8.21691272). RGN identification: 1:50,000 sheet 27D, type TRIPLO CILINDRO.

Altimetry: orthometric altitude at the top 209.74 m; at the base 200.96 m; ellipsoidal altitude at the top 264.04 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-27d-aguas-negras