Sobreira Seca Geodetic Marker

Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 39.93590822, -8.09963711
  • RGN sheet: 24A
  • Marker type: BOLEMBREANO
  • Top altitude: 473.85 m
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Sobreira Seca 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° 56' 9.2696" N, 08° 05' 58.6936" W (39.93590822, -8.09963711). RGN identification: 1:50,000 sheet 24A, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 473.85 m; at the base 471.37 m; ellipsoidal altitude at the top 529.57 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-24a-sobreira-seca

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