Alto da Estrada Geodetic Marker

Alto da Estrada 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° 09' 39.4407" N, 08° 30' 33.8032" W (40.16095575, -8.50938978). RGN identification: 1:50,000 sheet 19C, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 130.28 m; at the base 126.24 m; ellipsoidal altitude at the top 184.98 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-19c-alto-da-estrada