Hi, new to this forum, but a veteran GPS-Bike user. I did two segments of the Great Divide this year and never looked at a single named waypoint. I just loaded the track from Topofusion and followed it. I loaded free topo maps from GPS filedepot.com for a base, and only looked at the ACA map every few days to see an overview. I use a handlebar mounted Garmin Dakota 20.
I think waypoint lists and GPS units that can't handle tracks are obsolete. I know I have a few gathering dust. Any phone or resonably modern GPS can handle a huge long track and a basemap.
I feel adventure cycling is a bit behind in this field. The Adventure Cycling website could be the first source for detailed .gpx or .kmz files of your routes, but there does not seem to be much available. With a bit of Googling, good tracks can be found on sites like Garmin connect, Topofusion, GPSies, Strava, etc. The points from ACA can be made into a rough track, but they could use some filling out! The topfusion track for the great divide is great---it has enough detail that by zooming up you can tell in a glance whether a road is the turn you need to take, or just a recent dead end logging road. No written decription is needed, and it is rather liberating to know you aren't going to get off route.
A few volunteers could click out all your routes in detail on Google Earth pretty fast, but I'll bet you could find recorded tracks on the internet and among recent riders fairly easily.
PS: Hey there Tsteve! Thanks for the pics of you and L in Montana.--