Pedra Alva 1 Geodetic Marker

Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 37.97016142, -8.17742808
  • RGN sheet: 42D
  • Marker type: PILAR PRISMÁTICO S/ BASE PRISMÁTICA
  • Top altitude: 111.81 m
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Pedra Alva 1 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: 37° 58' 12.5811" N, 08° 10' 38.7411" W (37.97016142, -8.17742808). RGN identification: 1:50,000 sheet 42D, type PILAR PRISMÁTICO S/ BASE PRISMÁTICA.

Altimetry: orthometric altitude at the top 111.81 m; at the base 108.81 m; ellipsoidal altitude at the top 166.22 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-42d-pedra-alva-1

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