Valongo Geodetic Marker

Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 39.17081589, -9.34593475
  • RGN sheet: 30A
  • Marker type: BOLEMBREANO
  • Top altitude: 112.48 m
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Weather

Mon
29° 19°
Rain 5%
Tue
27° 19°
Rain 3%
Wed
26° 19°
Rain 0%
Thu
23° 19°
Rain 3%
Fri
24° 18°
Rain 3%

Valongo 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° 10' 14.9372" N, 09° 20' 45.3651" W (39.17081589, -9.34593475). RGN identification: 1:50,000 sheet 30A, order 4, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 112.48 m; at the base 109.94 m; ellipsoidal altitude at the top 166.4 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-30a-valongo

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