Gaião Geodetic Marker

Alter do Chão (Portugal) Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 39.26020286, -7.74807897
  • RGN sheet: 32B
  • Marker type: PILAR TRONCO-CÓNICO
  • Top altitude: 195.03 m
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Gaião 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° 15' 36.7303" N, 07° 44' 53.0843" W (39.26020286, -7.74807897). RGN identification: 1:50,000 sheet 32B, type PILAR TRONCO-CÓNICO. Altimetry: orthometric altitude at the top 195.03 m; at the base 192.42 m; ellipsoidal altitude at the top 249.81 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-32b-gaiao

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