Serra de Opa Geodetic Marker

Serra de Opa 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° 17' 9.7446" N, 07° 12' 45.3374" W (40.28604017, -7.21259372). RGN identification: 1:50,000 sheet 21A, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 869.07 m; at the base 866.57 m; ellipsoidal altitude at the top 924.95 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-21a-serra-de-opa