Alto da Fonte Geodetic Marker

Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 39.99088686, -8.18468697
  • RGN sheet: 23B
  • Marker type: BOLEMBREANO
  • Top altitude: 642.65 m
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Alto da Fonte 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° 59' 27.1927" N, 08° 11' 4.8731" W (39.99088686, -8.18468697). RGN identification: 1:50,000 sheet 23B, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 642.65 m; at the base 640.19 m; ellipsoidal altitude at the top 698.43 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-23b-alto-da-fonte

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