As I read all of us saying that we don't overly have too much faith in Technology,, I myself have been lead astray by technology.

then again there was a time when maps wern't reliable.

the good news was that they couple were prepaird, as most of us here strive to be.

I am left with the feeling that this couple didn't go "gee the snow is deep on this and looks un traversed. we should go back"

then again perhaps backing out would have been just as disasterous.

Regretably a couple of times I have relaized that I needed to back out and discovered myself in a ditch, and Yes I can drive a car backwards,, I just couldn't see the road well.