You can get fantastic maps at
www.veloland.ch
While biking out in the wilds of Switzerland I have had two run ins...neither was with a nazi. relax.
(The first was outside of Winterthur. I was sitting on a rock in the middle of a shallow stream soaking my feet and eating lunch. Some punk ass little shits, maybe 6 or 7 seven years old, aüslanders, started throwing rocks at me. I went to follow them but they disappeared into a large family group picnicking.
The second was along Bodensee. I accidentally found myself off the bike path and a short (1km) wanderweg. By the time I realized it I was only 50m from the end. But this 50-something Swiss woman stood in front of me, grabbed my bicycle and demanded that I walk my bike back and continue on.
Moral of the story: watch out for aüslander children and old Swiss women.)