Castelo da Maia Geodetic Marker

Castêlo da Maia (Portugal) Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 41.26551411, -8.61239914
  • RGN sheet: 09C
  • Marker type: BOLEMBREANO
  • Top altitude: 109.53 m
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Castelo da Maia 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: 41° 15' 55.8508" N, 08° 36' 44.6369" W (41.26551411, -8.61239914). RGN identification: 1:50,000 sheet 09C, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 109.53 m; at the base 107.53 m; ellipsoidal altitude at the top 164.57 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-09c-castelo-da-maia

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