I'm using my own custom route going east to west along the northern part of the USA. I used online maps to plan my route but when I went into my local book stores to find maps to have on-hand.... all I found were maps of highways and heavy-traffic major roads.

I am not an AAA member, nor do I know anyone who is.

I am not following adventure cycling's Northern tier route, but my own.

I am not using a GPS, but rather, bringing a computer along with me with my route downloaded on it. But I don't want to rely on my laptop battery for navigation.

Does anyone know of maps that are detailed down to back roads?