Rand McNally Road Atlas Get one.

I like GPS as much or more than the next guy, but I also know that technology has been known to mess up. GPS receivers are great and generally know where they are located to under 20 feet. That does not mean that the map overlay is right. I've seen errors in the GPS maps on my Garmin Nuvi. The data is input by mere mortals...

As for driving into lakes and such, can't help you there, seek professional care...