Calvo Geodetic Marker
Key Facts
- Source: RGN
- Coordinates: 38.87120867, -8.53050233
- RGN sheet: 35A
- Marker type: BOLEMBREANO
- Top altitude: 111.43 m
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Calvo 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° 52' 16.3512" N, 08° 31' 49.8084" W (38.87120867, -8.53050233). RGN identification: 1:50,000 sheet 35A, type BOLEMBREANO. Altimetry: orthometric altitude at the top 111.43 m; at the base 108.91 m; ellipsoidal altitude at the top 165.41 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-calvo
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