Google Maps accused of offering 'potentially fatal' hiking routes
https://edition.cnn.com/travel/article/ben-nevis-fatal-routes-intl-scli-gbr/index.html
It's often the case with Google Maps to offer dangerous routes that even skilled climbers cannot go ahead along with the routes. It would be caused by lack of geographical information. Especially when Google Maps show a route with long dotted line, you should pay attention to it. It shows the section Google Maps cannot recognize.