USA Guide
Getting around
Distances in the US are so great that it's essential to plan in advance how you'll get from place to place. Amtrak provides a skeletal but often scenic rail service, and there are usually good bus links between the major cities. Even in rural areas, by advance planning, you can usually reach the main points of interest without too much trouble by using local buses and charter services.
That said, travel between cities is almost always easier if you have a car. Many worthwhile and memorable US destinations are far from the cities: even if a bus or train can take you to the general vicinity of one of the great national parks, for example, it would be of little use when it comes to enjoying the great outdoors.