Porto Velho Geodetic Marker

Ourém (Portugal) Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 39.70521211, -8.44923942
  • RGN sheet: 23D
  • Marker type: BOLEMBREANO
  • Top altitude: 170.5 m
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Porto Velho 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° 42' 18.7636" N, 08° 26' 57.2619" W (39.70521211, -8.44923942). RGN identification: 1:50,000 sheet 23D, type BOLEMBREANO. Altimetry: orthometric altitude at the top 170.5 m; at the base 168 m; ellipsoidal altitude at the top 225.38 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-23d-porto-velho

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