I'm looking at the various rail passes. They each come with a specified number of "segments" I'm not sure what defines a segment. Do you have to get off the train?
On an Empire Builder run from Portland to Chicago, is that one segment? Or does the run from Portland to Spokane constitute a segment even if you remain on the train to Chicago?
On an Empire Builder run from Portland to Chicago, is that one segment? Or does the run from Portland to Spokane constitute a segment even if you remain on the train to Chicago?