I am often asked about GPS settings for this area by our guests. So I thought I would post the details:
First of all, it's important to purchase a map that gives you the positioning format and map datum.
For this region of Spain, the settings using Mapa Topografico Nacional de Espana
1: 25000 can be seen on the map below:
Correct settings for Units Setup
The maps we use at Pure High use a UTM grid and a European 1950 datum. We order our maps from Centro Nacional de Information Geografica (CNIG)
in Madrid www.cign.ign.es
I hope this information will be helpful.