In one side of Cachamuíña there is this geodesic point.
We can read: "Observación geodésica REF-MI"
The plaque is in a white concrete column
Visit Instructions:La única forma de demostrar que ha estado allí es mostrando una fotografía de usted o su GPS con la señal, de lo contrario la entrada no será aprobada.
The only way to prove that you have been there is posting a picture of you or your GPSr with the mark, on the contrary your waymark will not be
approved.