São João Geodetic Marker

Cadaval (Portugal) Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 39.17422344, -9.06015894
  • RGN sheet: 30B
  • Marker type: PILAR S/ IGREJA
  • Top altitude: 665.17 m
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São João 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' 27.2044" N, 09° 03' 36.5722" W (39.17422344, -9.06015894). RGN identification: 1:50,000 sheet 30B, type PILAR S/ IGREJA. Altimetry: orthometric altitude at the top 665.17 m; at the base 660.6 m; ellipsoidal altitude at the top 719.26 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-30b-sao-joao

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