Forte Velho Geodetic Marker

Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 40.51664756, -7.29486808
  • RGN sheet: 18C
  • Marker type: BOLEMBREANO
  • Top altitude: 1070.89 m
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Forte Velho 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° 30' 59.9312" N, 07° 17' 41.5251" W (40.51664756, -7.29486808). RGN identification: 1:50,000 sheet 18C, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 1070.89 m; at the base 1067.94 m; ellipsoidal altitude at the top 1127 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-18c-forte-velho

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