I've never tried to total them up but I don't find that at all surprising. Tourists head out into the wilderness with no respect for what they're facing. They

I've never tried to total them up but I don't find that at all surprising. Tourists head out into the wilderness with no respect for what they're facing. They aren't carrying enough water, they have a breakdown, they're in deep trouble. Here in Las Vegas we have a ring of mountains around the city--and virtually no cell coverage beyond that ring. Even within the ring the outlying areas are often shadowed out.