São Martinho Geodetic Marker
Key Facts
- Source: RGN
- Coordinates: 39.80297567, -7.46365369
- RGN sheet: 24D
- Marker type: PIRÂMIDE
- Top altitude: 444.87 m
São Martinho 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° 48' 10.7124" N, 07° 27' 49.1533" W (39.80297567, -7.46365369). RGN identification: 1:50,000 sheet 24D, type PIRÂMIDE.
Altimetry: orthometric altitude at the top 444.87 m; at the base 435.39 m; ellipsoidal altitude at the top 500.04 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-24d-sao-martinho
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