Alto do Vale 1 Geodetic Marker
Key Facts
- Source: RGN
- Coordinates: 39.19301747, -8.74465419
- RGN sheet: 31A
- Marker type: BOLEMBREANO S/ DEPÓSITO
- Top altitude: 103.62 m
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Alto do Vale 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: 39° 11' 34.8629" N, 08° 44' 40.7551" W (39.19301747, -8.74465419). RGN identification: 1:50,000 sheet 31A, type BOLEMBREANO S/ DEPÓSITO. Altimetry: orthometric altitude at the top 103.62 m; at the base 74.53 m; ellipsoidal altitude at the top 157.42 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-alto-do-vale-1
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