Marco Grande Geodetic Marker
Key Facts
- Source: RGN
- Coordinates: 39.13897922, -9.33611022
- RGN sheet: 30A
- Marker type: BOLEMBREANO
- Top altitude: 139.58 m
Weather
Marco Grande 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° 08' 20.3252" N, 09° 20' 9.9968" W (39.13897922, -9.33611022). RGN identification: 1:50,000 sheet 30A, order 2, type BOLEMBREANO.
Altimetry: orthometric altitude at the top 139.58 m; at the base 135.5 m; ellipsoidal altitude at the top 193.39 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-30a-marco-grande
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