Seixal Geodetic Marker

Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 38.17199000, -7.82420661
  • RGN sheet: 43A
  • Marker type: BOLEMBREANO
  • Top altitude: 189.32 m
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Seixal 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: 38° 10' 19.164" N, 07° 49' 27.1438" W (38.17199000, -7.82420661). RGN identification: 1:50,000 sheet 43A, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 189.32 m; at the base 186.32 m; ellipsoidal altitude at the top 244.34 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-43a-seixal

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