Santo Ildefonso Geodetic Marker

Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 40.68117042, -7.66326767
  • RGN sheet: 17B
  • Marker type: BOLEMBREANO
  • Top altitude: 642.75 m
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Santo Ildefonso 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° 40' 52.2135" N, 07° 39' 47.7636" W (40.68117042, -7.66326767). RGN identification: 1:50,000 sheet 17B, type BOLEMBREANO.

Altimetry: orthometric altitude at the top 642.75 m; at the base 640.78 m; ellipsoidal altitude at the top 698.5 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-17b-santo-ildefonso

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