Alporchinhos Geodetic Marker

Porches (Portugal) Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 37.10437294, -8.38516542
  • RGN sheet: 52B
  • Marker type: BOLEMBREANO
  • Top altitude: 65.15 m
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Alporchinhos 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: 37° 06' 15.7426" N, 08° 23' 6.5955" W (37.10437294, -8.38516542). RGN identification: 1:50,000 sheet 52B, order 4, type BOLEMBREANO. Altimetry: orthometric altitude at the top 65.15 m; at the base 62.15 m; ellipsoidal altitude at the top 117.66 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-52b-alporchinhos

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