Chão da Velha Geodetic Marker

Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 39.57809308, -7.72686072
  • RGN sheet: 28B
  • Marker type: PILAR PRISMÁTICO S/ BASE PRISMÁTICA
  • Top altitude: 292.92 m
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Chão da Velha 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° 34' 41.1351" N, 07° 43' 36.6986" W (39.57809308, -7.72686072). RGN identification: 1:50,000 sheet 28B, type PILAR PRISMÁTICO S/ BASE PRISMÁTICA.

Altimetry: orthometric altitude at the top 292.92 m; at the base 290.19 m; ellipsoidal altitude at the top 348.08 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-28b-chao-da-velha

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