A BIG X2 on the Benchmark series of atlases specific for each western state. They show everything including dirt roads for exploring, all public campgrounds, historic sites, etc. It's a shame they don't make them for eastern states. Instead, you might look at the DeLorme gazeteers which are published for all states. You can find them in bookstores and online. That's what we started out with but our travels are in the west now so we switched to Benchmark.
A state-wide map from a Visitor Center is o.k. but if you're like us, we want lots more detail than they show so you need a state-specific atlas/gazeteer.
You might try browsing this site for regular maps:
Maps of All KindsIn my mind, a computer will never replace a good paper map for seeing the whole picture of an area. When you zoom out to see more area you loose the detail. We do use the Delorme Street Atlas for preparing our hand-selected routes and a GPS to follow our routes but the first thing we grab before using those is a good map! We don't travel interstates unless absolutely necessary. The secondary roads are much more pleasant for us but everyone is different. Good luck in your search!
Full-Timed for 16 Years
.... Back in S&B Again
Traveled 8 yr in a 40' 2004 Newmar Dutch Star Motorhome
& 8 yr in a 33' Travel Supreme 5th Wheel