Coordinates

To know the coordinates of a point, select the information button in the toolbar and click over the map (in the point you are interested in).

Coordinates "Geogràfica-ETRS89" are used by the GPS and applications like Google Earth/Maps.

ETRS89

See basic notions about the ETRS89 reference system.
You can do coordinate conversions using the geodetic calculator.

Height

Shown heights are orthometric, and are obtained by interpolation (nearest neighbor algorithm) from the 5x5 m and 15x15 m Digital Elevation Model (DEM).