Portela 1 Geodetic Marker

Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 40.51128128, -8.16227622
  • RGN sheet: 16D
  • Marker type: BOLEMBREANO
  • Top altitude: 226.51 m
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Portela 1 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' 40.6126" N, 08° 09' 44.1944" W (40.51128128, -8.16227622). RGN identification: 1:50,000 sheet 16D, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 226.51 m; at the base 224.01 m; ellipsoidal altitude at the top 281.83 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-16d-portela-1

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