Algés Geodetic Marker

Oeiras (Portugal) Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 38.70486781, -9.23320753
  • RGN sheet: 34D
  • Marker type: PILAR PRISMÁTICO
  • Top altitude: 84.56 m
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Algés 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: 38° 42' 17.5241" N, 09° 13' 59.5471" W (38.70486781, -9.23320753). RGN identification: 1:50,000 sheet 34D, type PILAR PRISMÁTICO. Altimetry: orthometric altitude at the top 84.56 m; at the base 83.36 m; ellipsoidal altitude at the top 137.99 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-34d-alges

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