This has been a learning experience with Google Maps for me.  There are four different layers - one for each of the route options.  We'll decide which one we want to do on Friday.  Or we may decide to split up as there are shorter "out and back" and longer loop options.  

I think you should be able to save this to phones and GPS units so you can use it while on the trip.  But you may have to experiment a bit.  I had some guys at work check it out on their phones today - the android phones seemed to work better with it than the iPhones.  (unfortunately for me since I have an iPhone).  

It's also an option to save it as a .kmz or .kml file for those that are Google-saavy.  If you want it, PM me with your email and I'll send it to you.

Less than a week now, looking forward to the adventure!