São Marcos Geodetic Marker
Key Facts
- Source: RGN
- Coordinates: 39.65149017, -8.08139864
- RGN sheet: 28A
- Marker type: BOLEMBREANO
- Top altitude: 408.67 m
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São Marcos 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° 39' 5.3646" N, 08° 04' 53.0351" W (39.65149017, -8.08139864). RGN identification: 1:50,000 sheet 28A, type BOLEMBREANO. Altimetry: orthometric altitude at the top 408.67 m; at the base 406.68 m; ellipsoidal altitude at the top 463.81 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-28a-sao-marcos
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