Sina Geodetic Marker
Key Facts
- Source: RGN
- Coordinates: 38.84301925, -8.68091761
- RGN sheet: 35A
- Marker type: BOLEMBREANO
- Top altitude: 66.15 m
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Sina 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: 38° 50' 34.8693" N, 08° 40' 51.3034" W (38.84301925, -8.68091761). RGN identification: 1:50,000 sheet 35A, order 4, type BOLEMBREANO. Altimetry: orthometric altitude at the top 66.15 m; at the base 63.65 m; ellipsoidal altitude at the top 119.82 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-35a-sina
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