Sete Casais Geodetic Marker

Valongo (Portugal) Geodetic Marker

Key Facts

  • Source: RGN
  • Coordinates: 41.20059494, -8.52358236
  • RGN sheet: 09C
  • Marker type: BOLEMBREANO
  • Top altitude: 284.17 m
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Sete Casais 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: 41° 12' 2.1418" N, 08° 31' 24.8965" W (41.20059494, -8.52358236). RGN identification: 1:50,000 sheet 09C, order 2, type BOLEMBREANO. Altimetry: orthometric altitude at the top 284.17 m; at the base 281.67 m; ellipsoidal altitude at the top 339.33 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-09c-sete-casais

Sobre Valongo

Nestled in the Tâmega Valley, Valongo offers a compelling blend of industrial heritage and natural beauty. Explore the fascinating world of 19th-century ironwork at the Zeco Mining Museum, then wander through the verdant landscapes and picturesque villages surrounding the city. Discover a genuine Portuguese experience, steeped in tradition and rich in local flavours.

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