Pedra Sina Geodetic Marker

Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 40.67957286, -7.19961633
  • RGN sheet: 18A
  • Marker type: BOLEMBREANO
  • Top altitude: 675.86 m
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Pedra Sina 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° 40' 46.4623" N, 07° 11' 58.6188" W (40.67957286, -7.19961633). RGN identification: 1:50,000 sheet 18A, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 675.86 m; at the base 673.38 m; ellipsoidal altitude at the top 731.88 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-18a-pedra-sina

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