I just discovered this thread a few days ago. Your rides look fantastic.
We went thru some of this area on a loop from Abq to Death Valley in May 2010. We had to skip Toroweap because of mud.
We tried to go back in September but never got past Canyon de Chelly and Chinle AZ again because of mud. This time we destroyed or damaged 3 clutches.
We are going to try again next year. We were originally planning to go from Mesquite down to Moapa and then into the DNWR and loop up to Alamo. But it looks like the Alamo rd is now seriously closed due to washouts.
So for now I think we will reroute and use some of your tracks thru and around St. George. Looks like the ride will be spectacular.
Looks like you use Benchmark maps for much of your ride planning. I do to and use them to augment creating GPS tracks.