Valongo Geodetic Marker

Alcácer do Sal (Portugal) Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 38.31782583, -8.36286653
  • RGN sheet: 39D
  • Marker type: BOLEMBREANO
  • Top altitude: 103.84 m
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Valongo 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° 19' 4.173" N, 08° 21' 46.3195" W (38.31782583, -8.36286653). RGN identification: 1:50,000 sheet 39D, type BOLEMBREANO. Altimetry: orthometric altitude at the top 103.84 m; at the base 100.85 m; ellipsoidal altitude at the top 158.36 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-39d-valongo

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