Caldeiras Geodetic Marker

Nisa (Portugal) Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 39.47525122, -7.62312114
  • RGN sheet: 28D
  • Marker type: PILAR TRONCO-CÓNICO
  • Top altitude: 320.41 m
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Caldeiras 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° 28' 30.9044" N, 07° 37' 23.2361" W (39.47525122, -7.62312114). RGN identification: 1:50,000 sheet 28D, type PILAR TRONCO-CÓNICO. Altimetry: orthometric altitude at the top 320.41 m; at the base 317.8 m; ellipsoidal altitude at the top 375.36 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-28d-caldeiras

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