Alto da Raia Geodetic Marker

Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 40.63851967, -6.80587294
  • RGN sheet: 18B
  • Marker type: BOLEMBREANO
  • Top altitude: 799.02 m
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Alto da Raia 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° 38' 18.6708" N, 06° 48' 21.1426" W (40.63851967, -6.80587294). RGN identification: 1:50,000 sheet 18B, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 799.02 m; at the base 797 m; ellipsoidal altitude at the top 854.83 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-18b-alto-da-raia

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