Having this map downloaded saved me on day three of my hike. I was going over Col de la Seigne alone and in very bad weather. It was the beginning of June so the trail at that altitude was still completely obscured by snow. It was pouring rain and there were heavy clouds so visibility was only a few meters. I would pull out my phone and check my location in relation to the trail every five minutes. I safely made it to Refuge Elisabetta and was so grateful for this map!!