Grila Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 40.26500636, -7.47820531
  • RGN sheet: 20B
  • Marker type: BOLEMBREANO
  • Top altitude: 491.5 m

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Grila 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: 40° 15' 54.0229" N, 07° 28' 41.5391" W (40.26500636, -7.47820531). RGN identification: 1:50,000 sheet 20B, type BOLEMBREANO. Altimetry: orthometric altitude at the top 491.5 m; at the base 489.03 m; ellipsoidal altitude at the top 547.38 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-20b-grila

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