Hallwag Maps; Renowned for their detail and ease of use. While they don't necessarily make hundreds of maps, the maps they do create are quality work.
This large, folded travel map covers the entire country of the United States of America!
Included on this map you'll find roads, airports, railways, ferry routes, airports, national parks and places of interest.
It also has a Distoguide (an adjustable distance chart pull tab in back cover)