A da Velha Geodetic Marker

Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 37.98004933, -8.13310833
  • RGN sheet: 42C
  • Marker type: BOLEMBREANO
  • Top altitude: 146.83 m
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A da Velha 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' 48.1776" N, 08° 07' 59.19" W (37.98004933, -8.13310833). RGN identification: 1:50,000 sheet 42C, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 146.83 m; at the base 144.84 m; ellipsoidal altitude at the top 201.34 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-42c-a-da-velha

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