Hi Martin,,
Did some of the Pyrenees last year,, you will struggle to find a electronic map that will cover the tracks etc down their,, we did !!
Only way is a held held GPS unit, Garmin etc, than will give a Lat & Long, and work this back to a paper map, when/If you can find one with a large enough scale,,
A few of the tracks are marked on the likes of Tom-Tom Europe etc