Alto das Matas Geodetic Marker

Seia (Portugal) Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 40.44103742, -7.68303625
  • RGN sheet: 17D
  • Marker type: BOLEMBREANO
  • Top altitude: 509.6 m
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Alto das Matas 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° 26' 27.7347" N, 07° 40' 58.9305" W (40.44103742, -7.68303625). RGN identification: 1:50,000 sheet 17D, order 4, type BOLEMBREANO. Altimetry: orthometric altitude at the top 509.6 m; at the base 506.56 m; ellipsoidal altitude at the top 565.5 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-17d-alto-das-matas

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