Gião Geodetic Marker

Gião 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: 41° 51' 54.2871" N, 08° 19' 26.929" W (41.86507975, -8.32414694). RGN identification: 1:50,000 sheet 01D, order 2, type BOLEMBREANO S/ VIGIA. Altimetry: orthometric altitude at the top 831.62 m; at the base 821.21 m; ellipsoidal altitude at the top 887.59 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-01d-giao