Ferreiros Geodetic Marker
Key Facts
- Source: RGN
- Coordinates: 39.18420144, -8.82404150
- RGN sheet: 31A
- Marker type: TRIPLO CILINDRO
- Top altitude: 137.73 m
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Ferreiros 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: 39° 11' 3.1252" N, 08° 49' 26.5494" W (39.18420144, -8.82404150). RGN identification: 1:50,000 sheet 31A, order 4, type TRIPLO CILINDRO. Altimetry: orthometric altitude at the top 137.73 m; at the base 129.74 m; ellipsoidal altitude at the top 191.6 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-31a-ferreiros
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