Jan 26, 2017 - 6:52 PM
in reply to Raymoz
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In many countries, the wireless telephone coverage would be problematic in a region such as you are hiking through. Switzerland, in contrast, does not have many gaps in coverage, but, being a hiker of the old school, I'd try to carry some kind of paper notes on that rather remote section.
There is map of coverage on line somewhere.
I do tend to be excessively cautious, partly because I now have sore knees and am uncertain about their capabilities for distance work.