I've got digital mapping for most of the Tour du Mont Blanc but find it frustrating that parts of the Italian section are missing. I cannot find any digital maps that show the section between Col de la Seigne and Col Grande Ferret in its entirety.
I've got Memory Map and ViewRanger and neither of them show the complete Italian section. Anyone know why this is?
In reply to mypyrex: I purchased a single map that fits in a pocket with all the route on from outside in hathersage, it's very good and happy to lend, it's has an ISBN 10: 2723489280 for a web search
http://www.gps-tracks.com/ has free access to the swiss maps and can cache them without needing data access later on (I think you need to pay to do this on the official swiss topo app).
Only used the ios version but android avilable too.