Sesmarias 1 Geodetic Marker
Key Facts
- Source: RGN
- Coordinates: 37.97331192, -8.36575781
- RGN sheet: 42D
- Marker type: BOLEMBREANO
- Top altitude: 79.57 m
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Sesmarias 1 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° 58' 23.9229" N, 08° 21' 56.7281" W (37.97331192, -8.36575781). RGN identification: 1:50,000 sheet 42D, type BOLEMBREANO. Altimetry: orthometric altitude at the top 79.57 m; at the base 77.07 m; ellipsoidal altitude at the top 133.82 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-42d-sesmarias-1
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