This is a fun documentary about the Hayduke Trail, well not actually considered a trail it is more of a route. It is over 800 miles through extreme desert conditions in the beautiful US Southwest.
High routes look like a beautiful way to take in epic scenery while avoiding the crowds. The only problem is that it comes with a much higher level of difficulty and challenge than I would probably be inclined to do.
Here is a well documented journey from Dan Stenziao on the Sierra High Route through Yosemite.