Matrema Geodetic Marker

Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 40.40300542, -6.85881606
  • RGN sheet: 18D
  • Marker type: BOLEMBREANO
  • Top altitude: 843.61 m
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Matrema 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° 24' 10.8195" N, 06° 51' 31.7378" W (40.40300542, -6.85881606). RGN identification: 1:50,000 sheet 18D, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 843.61 m; at the base 841.07 m; ellipsoidal altitude at the top 899.65 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-18d-matrema

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