Eiras Geodetic Marker

Castro Daire (Portugal) Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 40.86152819, -7.98979897
  • RGN sheet: 14C
  • Marker type: BOLEMBREANO
  • Top altitude: 685.88 m
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Eiras 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° 51' 41.5015" N, 07° 59' 23.2763" W (40.86152819, -7.98979897). RGN identification: 1:50,000 sheet 14C, order 4, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 685.88 m; at the base 683.38 m; ellipsoidal altitude at the top 741.91 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-14c-eiras

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