Caldeira Geodetic Marker

Alcácer do Sal (Portugal) Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 38.43296647, -8.28028100
  • RGN sheet: 39B
  • Marker type: BOLEMBREANO
  • Top altitude: 156.25 m
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Caldeira 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° 25' 58.6793" N, 08° 16' 49.0116" W (38.43296647, -8.28028100). RGN identification: 1:50,000 sheet 39B, type BOLEMBREANO. Altimetry: orthometric altitude at the top 156.25 m; at the base 153.74 m; ellipsoidal altitude at the top 211.05 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-39b-caldeira

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