Alhadas Geodetic Marker

Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 40.18654617, -8.81387508
  • RGN sheet: 19C
  • Marker type: BOLEMBREANO
  • Top altitude: 156.96 m
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Alhadas 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° 11' 11.5662" N, 08° 48' 49.9503" W (40.18654617, -8.81387508). RGN identification: 1:50,000 sheet 19C, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 156.96 m; at the base 153.25 m; ellipsoidal altitude at the top 210.77 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-alhadas

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