Santo António Geodetic Marker

Alter do Chão (Portugal) Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 39.17965964, -7.77076244
  • RGN sheet: 32A
  • Marker type: PILAR TRONCO-CÓNICO S/ CILINDRO
  • Top altitude: 216.28 m
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Santo António 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° 10' 46.7747" N, 07° 46' 14.7448" W (39.17965964, -7.77076244). RGN identification: 1:50,000 sheet 32A, type PILAR TRONCO-CÓNICO S/ CILINDRO. Altimetry: orthometric altitude at the top 216.28 m; at the base 212.25 m; ellipsoidal altitude at the top 271.01 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-32a-santo-antonio

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